DiaCal User's Guide - MOPS Computer GmbH
Contents
1. If you wish to have a blank frame click this switch In the case of several blank frames enter the number of the frame to which you wish to advance You may also simply enter the number of blank frames preceded by a plus sign e g 2 The gt Cancel lt key will also interrupt the film advance in case you accidentally enter too high a number 6 9 Unload Camera This function is called up on after the film has been removed It resets the exposure counter back to zero 34 DiaCal User s Guide 6 10 CRT Calibration By using this switch the CRT calibration system calibration can be done by hand The CRT calibration is the internal brightness balance of the pic ture tube If you activate auto CRT Calibration after the calibration of the CRT is running after the numbers of images that you have entered 6 11 Reset The gt Reset lt switch resets the film recorder This option how ever is only available when a GPIB card is being used 6 12 LUT Data Range Depending on the model of film recorder the LUT can be transmit ted with a data range of between 8 and 12 bit Since 12 bit offers 4 096 different brightness values and 8 provides only 256 the gra dations of the Look Up Table at 12 bit are much finer With film recorders that cannot support a 12 bit data range the selection field is gray and can t be clicked DiaCal User s Guide 35 7 Looking Up From the main window you can call up the various func2. Standard LUT RSX100 f r PCRII PLUS De 1343 6 7 8 991011 12 13 14 Module 35mm Filmtype 6 4K Field No Model AGFA MTX PCR2 PLUS 3 03 C Programme MOPS Dial ools Per2rsx lut without Calibration Illustration 7 Window for manualy calibration This function makes the manual adjustment of the film recorder s LUT possible With the help of the mouse each individual color curve can be moved up and down at will and at any point In addi tion each color curve can be foreshortened or stretched In order to do so there are markers to the left and right of the diagram These markers can be moved using the mouse First choose the desired color using either the menu options or the symbol bar In the input field Gamma a gamma value can be set which has an effect on the LUT s In this way the pictures to be exposed can be made darker or lighter This has no effect on the impression the colors make A value higher than 1 makes the pictures brighter one lower than 1 makes them darker The value which has been entered is only displayed so long as the LUT file hasn t been closed or stored Otherwise the value 1 00 appears The gamma value always refers to the LUT values after loading or after the last time the file was stored DiaCal User s Guide 27 In the commentary field below you can record your comments on the calibration curve Below this field are two lines which indicate the module of the film recorder the number of the f
3. The number of test pictures determines the number of the total of 16 required test areas on a picture and thereby also the size of the test area The test areas have to be large enough that they can be measured by the densitometer For the 24x36 format there will usually be four such areas for larger film formats 6x6 one is usu ally adequate Since the number of test pictures depends on the film recorder camera module being used the setting can only be made by previously getting the LUT from the film recorder or opening a LUT file Clicking gt OK lt will confirm the setting the switch gt Terminate lt will end the dialog box without changing the setting DiaCal User s Guide 55 To choose a test picture enter the number of the test pictures which are to be exposed into the text line You have the following possibilities the word All the numbers of the desired test pictures separated by commas Example 1 3 4 exposes test pictures 1 3 and 4 anumber followed by a minus sign will expose all the required test pictures beginning with number 2 numbers separated by a hyphen 4 7 will expose pictures 4 through 7 A combination of the above possibilities each possibility sepa rated form the others by a comma Number of Test Pattern C16 x Cancel Module 35mm Help Test Pattern to Expose fa e Expose Illustration 16 Dialog box Test Pattern The switch gt Expose lt will then carry
4. 4 1 Calibration 1 Choose Film Type and Start LUT 46 DiaCal User s Guide 3 7 4 2 Calibration 2 Save LUT as ne 47 7 4 3 Calibration 3 Choose Beierence 47 7 4 4 Calibration 4 Exposing Test Pattern 47 7 4 5 Calibration 5 Edit Measurement sseeeeeeeeeeeeeeesee 48 7 4 6 Calibration 6 CGalbratton 48 io OPLLONS MEN Use 49 7 5 1 Options Blue LUT ononrsssnanenecnnononununununi 50 7 5 2 Options Densttometer 50 45 3 Options Green LUT nassen anal 51 7 5 4 Options Interface 51 7 5 5 Options Model 52 7 5 6 Options Red LUUT 53 7 5 7 Options Setup Filmrecorder ee 53 7 5 8 Options Show only one LU 54 7 5 9 Options Show previous Le 54 7 5 10 Options Test Patten 54 7 5 11 Options Undo LUT changes 55 CD Mie MERU seen E ee sous pen een ee Ae 56 7 6 1 View Brightness Contrast Repeats sssseeesesseeeeeee 57 7 6 2 View Input Densaitwe 59 7 6 3 View Input per TEE 59 7 6 4 View Load next LU 60 7 6 5 View Load previous LUUT 60 20 6 View UT EE 60 Ee e EE 60 7 7 1 Window Arranging Ieons 61 7 7 2 Window Cascade seseseseeeseeeeseeeeseesseessressressseesseesseess 61 7 2 3 Window Gloseallurnssaneuesessaeneesnenset 62 752 4 Window E EE 62 7 7 5 Window Number 62 7 8 Help Menu sesssssseneses esse esse esse esse ssss ses esereserssesesose 62 7 8 1 Help Contextual Help sssssseeesse
5. Counter The active exposure counter of the film recorder will be displayed in the input field If you wish to re set the exposure counter then enter the desired number in the exposure counter input field and click gt Setup Filmrecorder lt If you wish one or more blank frames then either enter the corre sponding exposure number in the input field or use the plus sign followed by the number of blank frames Then click gt Advance Film lt Example 2 See also 6 6 Advance Film page 33 6 4 Image position Image width and height In the field pos and width height you see the actual status of po sition and size of the image on the CRT You can change these values manually if you want to have a differ ent image area and a different starting point of the image on the CRT This is useful when imaging on cinefilms or on parts of sheet films 32 DiaCal User s Guide The preset values for the standard 24x36mm slide filmes at 4k reso lution are left 2048 width 4096 top 1366 height 2732 The zero point of the CRT co ordinates is in the middle of the CRT area This means that the starting point has a negativ value and the starting points for the left and top are half of the width and heights values Activating the button gt Setup Filmrecorder lt the changed values are saved in DiaTools DiaCal according to the actual modul and the resolution These values are also stored temporally in the film recorder and were
6. Help Illustration 18 Dialog box Brightness Contrast Repeats No Value Green LLE e No Value Blue The values displayed can be altered They originate either from the opened LUT file or directly from the film recorder So if you have neither got the LUT from the ilm recorder nor loaded a LUT file all values are set at zero The meaning of the individual values is described below Brightness The brightness values alter the brightness of the beam in your film recorder s cathode ray tube They describe the colors red green and blue separately Changing the brightness values ef fects all the test fields of the test picture but has a particularly strong effect on the bright fields 12 to 16 The units in which these values are expressed are arbitrary but a lower value indi cates greater brightness and or less density on the film Contrast 58 DiaCal User s Guide The contrast values alter the brightness of the cathode ray tube s beam particularly in fields 1 to 11 They describe the colors red green and blue separately The units in which these values are expressed are arbitrary but a lower value indicates greater brightness and or less density on the film Brightness or contrast values which are too low can lead to a cali bration error in the film recorder In this case at it is best to in crease the repetition rate In order to correct the calibration error you must make sure that the correspon
7. Recorder Controls uuuuuuuuuunnnnnnnunnunnnnnnnunnnnnnnnnnnnnnnnnnn 29 2 DiaCal User s Guide 6 1 FilmY Type 30 6 2 Resolution esouguer EE EE ner 31 6 3 Exposure Counter 31 6 4 Image position Image width and height 31 6 5 Pacins nannte deren han mandannettihien 32 6 6 Film end qie snaar ErP OPAT A 33 6 7 Load TEE 33 6 8 Advance Pili ed 33 6 9 Unload Camera essen naar 33 6 10 CRT Calibrations ee n oreert e eaaa ebene 34 6 11 EE 34 6 12 LUT Data Range nassen 34 7 Looking Up EE 35 TA The Menu Struet re 2 33 3222222228 cook csosesebeoctcpenesess 35 7 2 The Symbol Bar 35 1 32 le Menur messen ana 37 7 3 1 File Closer BE REBEREREERNERN T 39 7 3 2 File Densitometric Calibration seseeeeeeeeeeeesseeseeee 39 7 3 3 File Download LUT from Filmrecorder 40 Te SAME ile EE 40 43 9 File Expose Test Pattern sn det deeg e 7 40 EEN 41 7 3 7 File Log Eile jccsccecesecocesescsssesoueses seen esse sense sans 41 7 3 8 File Log File Delete nennen 42 7 3 9 File Manual Calibration s seesseeeeeeeeeeeeseeesereereressresseee 42 TOLOFE Open EE 42 7 3 11 File Baue sssussensssunkunskunnkeminnnnn 43 7 3 12 File Saye asnan 43 7 3 13 File Send LUT to Filmrecorder sssseseeeeeeeeeeeeeeee 44 7 3212 Eile Stop Ee EE 44 7 3 15 File Reference Pie 45 7 3 16 File View Test Dattern 45 7 4 Calibration Menu en 45 7
8. With densitometric calibration Using the menu item Options Show only one LUT you can be sure that the input fields only accept the measurement values of the color chosen 7 5 7 Options Setup Filmrecorder The film recorder controls which also can be activated by clicking the symbol Sa offer a variety of settings for the film recorder film type resolution exposure counter Other control possibilities which are also present are Loading film removing film film advance In addition it is possible to do a CRT balance to trigger a resetting of the film recorder and set the LUT data range Use of the film recorder controls is explained more thoroughly beginning on page 29 54 DiaCal User s Guide 7 5 8 Options Show only one LUT Only those LUTs which have been chosen via the menu items Red LUT Green LUT or Blue LUT are displayed with the correspond ing color When entering the measurement values in the densi tometric calibration only the input fields of the color chosen are effected The other fields will be skipped 7 5 9 Options Show previous LUTs The original LUTs are shown in the diagram with additional dots For manual changes of the LUT displaying the original curve can be very helpful 7 5 10 Options Test Pattern This menu item makes it possible to set the number of test pictures per calibration as well as the exposure of certain test pictures e g test picture no 1 or test pictures 2 through 4
9. a parallel printer cable is plugged in connect this to the backside of the hardlock plug Instead of this you can also install the version DiaCal softreg without hardlock protection Therefore you need a second license with a new registration number To install the DiaCal softreg call up the menu item Install DiaCal softreg in the installation program For being able to use this version it has to be registered with MOPS Computer see chapter Registration at page 11 When the window with the software licensing agreement appears click gt yes lt if you accept the conditions After a window with information about registering the software which you can leave by clicking gt Next lt you will be asked to enter your name the name of your firm and the serial number to be found on the enclosed registration card or disk Only when these entries have been made you will be able to click gt Next lt Attention If the hardlock version of the program is installed with a wrong serial number the program does not run properly You have to repeat the installation For the installation of DiaCal softreg you only need the first five figures as serial number The next five figures are automatically generated by the computer during installation The last eight fig ures will be given to you by us at registration Check the folder into which the program is to be copied If you wish to accept the pre setting then click gt Next lt If you like to
10. have it in a different folder then click gt Look up lt enter the de sired folder and click gt OK lt After you have decided whether you wish to read the README file now or later the installation is completed 10 DiaCal User s Guide 2 4 Installation of the Hardlock Modul For working with DiaCal software connect the hardlock plug to the parallel interface of your computer In case a parallel printer cable is plugged in connect this to the backside of the hardlock plug During the installation of the DiaCal software the hardlock modul is automatically installed The installation of the hardlock version under Windows NT requires the according administrator privilege Under windows NT the program HLINST EXE is automatically started If the error message Unable to load hardlock driver is reported when starting DiaCal there is the possibility of subse quently starting HLINST EXE separately after the installation of Dia Cal Therefore in the installation program call up the menu item Install Install Hardlock for Windows NT Attention If under Winows NT an old version of the Hardlock driver Hardlock sys is installed please first deinstall this version see chapter Deinstallation at page 13 First put the CD in the CD drive The DiaCal installation program will start automatically If not double click on the program SETUP EXE on the CD Choose the language english or german and then click on DiaCal The insta
11. into the program Then the program computes a new LUT which is stored and transmitted to the film recorder With manual calibration you have the option of using the mouse to change the LUT presented graphically as a curve This al 6 DiaCal User s Guide tered LUT can also be stored and transmitted to the film re corder In principle the results of both calibrated and uncalibrated LUTs can be checked through making a test picture 1 2 System Requirements An IBM compatible PC with at least a 80386 processor Win dows 95 or Windows NT 4 0 with CD ROM A CCG Agfa or Matrix film recorder A National Instruments GPIB card with a GPIB32 driver or an Adaptec SCSI card with an ASPI32 driver for connection to the film recorder For the densitometric calibration you will require a transmitted light color densitometer 1 3 About this User s Guide The varying typographies in the user s guide have the following meanings References to operations which are described more thoroughly in another part of the user s guide give you the appropriate page number Cross references to menu items of the program are printed in a different type face First there is the menu item from the menu bar this is followed by a vertical line followed by the appropriate command e g File Open File names are printed in BLOCK LETTERS Keys which can be oper ated with the mouse are between pointed gt brackets lt DiaCa
12. reset to default with every reset of the film recorder Dia Tools DiaCal automatically sends the changed values every time before sending the image data If the last stored values in Dia Tools DiaCal are different to the actual values in the film recorder you will be asked whether to use the stored or the default values 6 5 Pacing The pacing value creates a delay between the individual lines of the exposure process This can be of use with highly complex graphics as a way of suppressing any brightness strips which might occur during exposure If this should happen set a higher pacing value There is a range of between 3 and 225 Some recorders operate with a 0 setting and this corresponds to the highest possible speed DiaCal User s Guide 33 6 6 Film end query If the film end query is set check box Filmend Request active the end of film signal of film recorder will be used Otherwise the number of images per film can be entered If the recorder reaches this number the further exposure will be interrupted and a notifi cation will appear on the screen To activate or deactivate the check box click on it with the mouse If it is deactivated enter the number of the last image on the film To confirm the entries click on gt Setup Filmrecorder lt 6 7 Load Film This function is called up after inserting a new film This saves having to call up this function through the menu of the film re corder 6 8 Advance Film
13. this menu item the content of the Log Book see p 41 will be erased Just to make sure that nothing you still want gets lost you will be asked to confirm the erasure before it takes place Here you have the possibility of clearing out the Log Book from time to time so that you have a better overview of the mate rial in it 7 3 9 File Manual Calibration This calls up the program window for manual calibration as is described on page 25 The manual calibration can also be reached using the symbol F 7 3 10 File Open The menu item File Open shows a dialog window for opening files LUT files REF files or CCF files can be loaded The two lists on the right makes it possible for you to choose the desired index and the drive On the bottom left the desired file DiaCal User s Guide 43 formats can be set and above that the name of the desired file can be clicked A double click will load them directly after a single click you confirm the choice with gt OK lt 7 3 11 File Save The menu item File Save stores the LUT file on a disk or on the hard disk If the file does not have a name yet then the dialog window Store File Under will be opened Here you can re name the file or store it in another index In this case a file name will be suggested automatically 7 3 12 File Save as The menu item File Save as opens the dialog window File Store as With this window you can store the file under the name you give
14. 3 7 File Log File This menu item shows the log book in which the film exposures have been registered You can always check the log book to find out which files have been exposed and how long the exposure was A DiaCal 16K _ Oo x File Options Window Help Picture 0 Test Pattern 1 Test Pattern Stopped 0 21 Picture 1 Test Pattern 1 13 10 1998 13 22 Test Pattern Ready 2 01 13 10 1998 13 22 Picture 2 Test Pattern 2 13 10 1998 13 24 Test Pattern Ready 2 34 13 10 1998 13 24 Picture 3 Test Pattern 3 13 10 1998 13 26 Test Pattern Ready 1 46 13 10 1998 13 26 Picture 4 Test Pattern 4 13 10 199 Test Pattern Ready 2 07 Illustration 10 Window Log File The Log File records when date and time which exposures exposure counter number were successfully exposed with which file path and file name and how long the exposure time was In addition any errors or terminations on the part of the user are also 42 DiaCal User s Guide noted This gives you a good overview of the activities of your film recorder The Log Book file DIATOOLS LOG is a pure text file which can be worked on with a word processing program You will find them in the same index as the EXE file of the program in most cases C PROGRAMME Mops DIATOOLS The Log Book file can be erased with the File Log File D lete When you continue work a new Log Book file will be cre ated 7 3 8 File Log File Delete If you call up
15. DiaCal User s Guide 1996 2001 MOPS Computer GmbH N Regniet A Herbst Geringhoffstra e 46 D 48163M nster DiaCal User s Guide 1 Contents 1 EE 5 1 1 What can the Application di 5 1 2 System Requirements keen 6 13 About this User s Guid ssc hheneh ashen eens 6 2 Installation oder gea de dea deet ge AN de Ee dee deg ele d e deeg dee 8 2 1 Installation of the SCSI Card 8 2 2 Installation of the GPIB Card 8 2 3 Installation of the Software ccccceccccescccescecesceceseeeeseeeeees 8 2 4 Installation of the Hardlock Modul 10 KEE LEE 11 2 5 1 Registration of the Hardlock Version 11 2 5 2 Registration of the Version Without Hardlock 11 226 Deinstall tion n an wanna eeneg 13 2 7 Adjusting the Recorder Type and the Interface 13 3 Some Basic Concepts nennen ek Ek ENK ENEE EN EE en 16 3 1 The window Densitometric Calibration 16 3 2 Look Up Table LUT u 17 3 3 Star WT WEE 17 BART UI TEN OS ste oct ee re ae hk ln eat erie ee I ee 18 3 5 CCE lee tegen 18 3 6 Reference Files uomo nana a a a a e a a 18 A Test BItute 2 EWEN KENNS KEEN ENK KENNS KENE KENE NNN KEEN NeeEN 20 5 Practical Operation sssss 22 5 1 Quick Operation with a Mouse sssssessesssseserererrrerrerrrrrrreeee 22 5 2 Densitometric Calibration cccccceccccescccseeceeeeeeseeeaseeees 22 5 39 Manual ee Te EE 25 6
16. During registration all of the application s module windows calibration window log window must be closed This software can only function if after being installed it is also registered with MOPS Computer In return you do not need the hardlock plug You will receive a registration number which is to be entered in the text field via the menu item Help Registration Otherwise the software cannot function 12 DiaCal User s Guide Registration takes place in the following manner The first part of the registration number contains a five figure serial number The serial number is entered during installation and is to be found on the disk label and the enclosed registration card The second part five figures is generated automatically during installation The third part eight figures will be given to you by us at regis tration In order to register the application we first need your name your firm s name address Tel Fax or E mail address together with the first two parts of the registration number to be found in the dialog box Then we can give you the third part of the registration num ber Enter it in the input field and confirm it by clicking gt OK lt In order to receive the registration number please send the en closed registration card to MOPS Computer GmbH Geringhoffstr 46 D 48163 Miinster Germany Fax 49 251 788225 e mail MOPS Computer t online de DiaCal User s Guide 13 2 6 D
17. LUS 1345 6 7 8 9 1011 121314 16 Module 35mm Filmtype 6 4K Field No Model AGFA MTX PCR2 PLUS 3 03 C Programme MOPS DiaT ools Per2rsx lut without Calibration Illustration 3 Window for Densitometric Calibration In the illustration you can see the program window for densitomet ric calibration with the following elements In the top row is the menu line for the choice of menu In the row below you will find the so called symbol or icon bar With the symbol bar you can call up the most important com mands with a simple mouse click The left half of the main window area shows a Look Up Table on a gray grid The vertical column of numbers on the left side gives the values of the Look Up Table in per cent 0 100 DiaCal User s Guide 17 The horizontal row of numbers below indicates the allocation to the test picture s individual test fields In the right hand section is a table for entering the measurement values In the field below you can record comments on your calibration curve Below this field are two lines which indicate the module of the film recorder being used the number of the film type the resolution setting of the film recorder and the model of the film recorder 3 2 Look Up Table LUT The Look Up Table converts the input values of the film recorder for the brightness of the three colors red green and blue into a value which can be used for controlling the beam intensity of the catho
18. Window Menu The Window Menu contains commands for positioning and arrang ing windows DiaCal User s Guide 61 a DiaCal 16K File Calibration Options View WW Help Cascade mma e J Densitometric Calibration Arrange Icons Close all 3 100 1 Densitometric Calibration Per2rsx lut 90 2 Manually Calibration Per2rsx lut Illustration 19 Menu Window Arrange Icons All the windows which have been reduced to symbols are arranged in a grid Cascade All windows which have not been reduced to symbols are arranged overlapping each other Close all All open windows are closed Tile All windows which have not been reduced to symbols are arranged side by side 7 7 1 Window Arranging Icons All the windows which have been reduced to symbols become re arranged along the lower edge of the main window 7 7 2 Window Cascade Beginning at the upper left in the client area all the windows are arranged overlapping but with their titles visible 62 DiaCal User s Guide 7 7 3 Window Close all All open windows become closed 7 7 4 Window Tile All windows which are open not reduced to symbols are arranged side by side without overlapping 7 7 5 Window Number If you have several windows open you can use this option to bring one of them to the foreground 7 8 Help Menu The Help Menu offers the following options a DiaCal 16K File Calibration Options View Window E Im aa m
19. ace to which the recorder will be connected You have the choice between the GPIB or the SCSI interface The appropriate interface card must be installed in the computer along with the corresponding software If the appropriate interface is available an ok will appear in the status column after you have clicked gt Apply lt Interface EN Status Scsiid JE ok Adapterld 0 Apply Help sooo JP Model AGFA MTx PCR2 PLUS 3 03 Illustration 2 Dialog box Interface The address entered into the program SCSI Id Or GPIB Id must be the same Default values GPIB 2 SCSI 6 Enter the adapter id if the film recorder is connected to a SCSI card with the adapter id of 1 2 or 3 If your computer has more than one GPIB card installed and the film recorder is connected to a second card than change the entry in the appropriate INI file DIACAL INI Clicking gt Help lt will provide a full description DiaCal User s Guide 15 The following chapter explains some of the basic concepts in the use of the film recorder calibrator DiaCal 16 DiaCal User s Guide 3 Some Basic Concepts 3 1 The window Densitometric Calibration J DiaCal 16K olx File Calibration Options View Window Help ER gml esol Sie girlie 2 Densitometric Calibration Pcr2rsx lut Red Green Blue Red Green Blue HENNEENE UE OOE BEBBBEBE UU UL mE 10 H H 6 E Comment Standard LUT RSX100 f r PCRII P
20. ange e g the file POSITIVE REF for slide films The density values of the file chosen are shown in the diagram on the left and given in numbers on the right The reference curve can be changed at will by changing the numbers You can record a corresponding text in the commentary line Then store the refer ence curve under another name Menu File Save as The new reference is now available for further calibrations DiaCal User s Guide 65 Our address is MOPS Computer GmbH Geringhoffstr 46 D 48163 M nster Germany Fax 49 251 788 225 eMail MOPS Computer t online de Homepage http www MOPS Computer de This user s guide was written with Microsoft Word for Windows95 Version 7 0a The typefaces are taken from the Agfa Discovery TrueTypePack Shannon Extra Bold for the titles and section headings Garth Graphic for the remainder of the text All the products and firm names in these operating instructions are property of the firms mentioned We would be very grateful for any suggestions or comments which could help us improve either the software or the user s guide 1996 2001 MOPS Computer GmbH Norbert Regniet August Herbst As of July 26 2001 14 00 66 DiaCal User s Guide
21. ay up to white area 16 62 8 WBS mpe Ee Me Sancers LUT REx OC fur PCRI UL ie Ta Eseul val cod Selk elizi RFF Fla Pied ma E r esc dern kizo ver 1 51 KOCA ACFA NTA FORE Pus zee Notte Zant Typa 5 4h Peete hme Pot Fw Illustration 4 View of test pattern The following data are also recorded on the test pictures the commentary the names of the LUT and reference file the model DiaCal User s Guide 21 of film recorder the camera module the number of the film type resolution date time and exposure number As can be seen in the above illustration the test picture can be displayed through the menu item File View Test Pattern 22 DiaCal User s Guide 5 Practical Operation 5 1 Quick Operation with a Mouse The simplest way to operate the program is to use a mouse to point and click the appropriate commands in the symbol or icon bar This bar varies according to which part of the program is active Below in the so called status line is a description of the function of the symbol which the mouse is pointing at Beginning on page 35 there is an overview of all the symbols in all the various parts of the program Si DiaCal 16K Eile Calibration Options View Window Help ER GET Aaaa Se Se lel 2 Illustration 5 Icons of the modul densitometric calibration The commands can also be called up using the menu The menu can be found above the symbol bar 5 2 Densitometric Calibration Using
22. d LUT from the density val ues which have been entered so that the density values of the next test picture will be closer to those of the reference file After the calibration process the diagram shows the new LUT which you can use for a subsequent calibration or for your expo sures DiaCal User s Guide 49 7 5 Options Menu In this menu as well which sub items are displayed depends on which part of the program you are using at the time a DiaCal 16K Interface een Test Pattern Densitometer Undo Lut changes v Red LUT Greene LUT Blue LUT Show only one LUT Illustration 12 Menu Options All commands in alphabetical order Blue LUT Selection of the blue LUT Densitometer Makes the setting of a densitometer type possible which automatically takes over data Green LUT Selection of the green LUT Interface Makes possible the setting of the Id No ofthe SCSI or the primary ad dress of the GPIB interface Setup Filmrecorder Makes different controls and setting possible Show only one LUT Only the chosen LUT of a particular color is displayed 50 DiaCal User s Guide Show previous LUTs Also displays the unchanged LUTs Model Setting of the film recorder model Red LUT Selection of the red LUT Test Pattern Selection of particular test pictures to be processed and determining the number of test pictures Undo LUT changes Restores the original LUT of the color which ha
23. de ray tube In this way it is possible to adapt the exposure to the spectral sensitivity of different film materials 3 3 Start LUT Start LUT Look Up Table is the LUT with which a calibration begins This is the LUT which is used to expose the first test pic tures using the 16 shades of gray defined in the program This will then be used as the basis for the densitometric readings As a rule it is a good idea to begin with the LUT which has been stored in the film recorder for the type of film being used It is also possible however to begin with a linear LUT In some cases an additional re calibration may become necessary 18 DiaCal User s Guide 3 4 LUT Files LUT files Look Up Table files are files which are generated by this application and read by it They contain the Look Up Tables the brightness contrast and repetition values of the individual col ors as well as the measured intensity values of the test pictures The data from all a film s calibration procedures are stored in the same file LUT files are pure text files which can be processed with a text editor 3 5 CCF Files CCF Color Correction Files are files which store the Look Up Table of a film recorder in the RasterPlus file format of Graphx Inc USA CCF files can be exported via the menu item File Save as They can be read using the menu item File Open 3 6 Reference Files Reference files REF contain the desired values for the co
24. ding LUT from film File Download LUT from recorder Filmrecorder L Calibrati Manual setting of the File Manual Calibration LUT Expose picture File Load LUT from Filmrecorder or File Inspect and Expose Terminate exposure immediately DiaCal User s Guide 37 SS Work on all LUTs simul Options All LUTs taneously a Ze Show only one LUT Options Show only one u LUT jen Show previous LUTs Options Show previous LUTs KA Set back LUT Options Undo LUT changes LE Calibration steps 1 to 6 Calibration 1 to 6 Setting brightness con View Brightness Con trast and repetition trast Repetition dh Call up film recorder Options Setup Filmrecor controls der Lu Display on line help Help Help If you point to one of the symbols for a moment its function will be indicated in the status line the lowest line in the program win dow 7 3 File Menu Depending on the window which has been called up the File Menu has different forms e g 38 DiaCal User s Guide a DiaCal 16K Options View Window Help Linear SE Open Gave FZ Save as Close Ctl F4 Choose Reference Download LUT from Filmrecorder F8 Send LUT to Filmrecorder F7 Expose Test Pattern 5 top Densitometric Calibration Manvel salibrator Log File F4 View Test Pattern F9 Exit Alt F4 Illustration 9 Menu File of the Modul Densitometric Calibration The individual command
25. ding values for brightness and contrast are set back One possibility is to change the values by hand using the menu of the film recorder Another possibility is to change the film type and then return to the original film type If all else fails you can set the film recorder back to its original position Be careful however If you do so all the individual settings will be lost You can read more about this in the operating manual of your film recorder Repetitions The number of repetitions indicates how often an individual color is repeated during the exposure process Zero means a simple exposure with no repetitions By repeating the exposure you can increase the amount of light during the exposure even if the brightness of the cathode ray tube has already reached its maximum or if the brightness shouldn t be increased because the beam diameter is becoming larger By doubling the number of exposure procedures doubling the repetition value and raise it by 1 the test fields of the test pic ture are each made roughly 0 3 density units brighter Number of the Table Entry The table entry describes the place in a table which are taken by the three values described above In newer film recorders these DiaCal User s Guide 59 numbers are already determined and you needn t change them With older film recorders certain settings can be stored in places in the table which are still free A total of eight table en tries are ava
26. e computer 52 DiaCal User s Guide Interface EN Status scsiid E ok Adapter Id jo Apply Help GPIB Id ER Model AGFA MTX PCR2 PLUS 3 03 Illustration 14 Dialog box Interface For the GPIB interface a primary address has to be set on the film recorder which is identical with the number in the input field The pre setting is 2 For the SCSI interface an ID Number has to be set on the film re corder which is identical with the number in the input field The pre setting is 6 If the corresponding interface is not available to the computer the input field is gray If your computer has more than one SCSI or GPIB card and the film recorder is connected to a second card change the entry in the appropriate INI file DIACAL INI _ A more detailed description can be found by clicking gt Help lt This menu item is available only if neither the windows for the densitometric nor the manual calibration have been called up 7 5 5 Options Model Click this command for setting your film recorder model DiaCal User s Guide 53 Illustration 15 Dialog box Model You can use the scroll to move up and down in the list of selec tions Mark your recorder model and confirm it with gt OK lt This menu item is only available if neither the windows for densi tometric nor manual calibration have been called up 7 5 6 Options Red LUT With this menu item you can select the red LUT to be worked on
27. eeessessrrssrrsssressersssees 63 7 8 2 Help Help hee 63 7 8 3 Help Help about Manual 63 7 8 4 Help About Daat 63 DiaCal User s Guide 8 Appendix 8 1 Drag amp Drop with the Windows Explorer eee 64 8 2 Making a Reference le 64 DiaCal User s Guide 5 1 Preface A few explanatory words about the system s requirements the structure of the user s guide itself and some of the basic concepts employed should make using our program easier In this user s guide you will find a description of the Version DiaCal for calibra tion The hardlock version of the software needs the hardlock plug for connection to the parallel interface The version DiaCal softreg without hardlock protection is only runnable after registration with MOPS 1 1 What can the Application do With the help of the film recorder calibrator DiaCal you will be able to adjust the colors and brightness of your exposures to the correct gray tones In order to do this the Look Up Table LUT of the film recorder is changed correspondingly The LUT can also be stored and re loaded like a file In addition it is also possible to export it in the RasterPlus CCF format of Graphx Inc USA as well as in the IMAGE Assist format for MAC of McLain Imaging USA There are two possibilities for calibrating the film recorder With densitometric calibration the data are determined with the help of a transmitted light color densitometer and entered
28. einstallation Only Windows NT The hardlock module can only be removed under Windows NT by restarting the installation program Therefore call up the menu item Install Deinstall Hardlock for Windows NT Therupon the hardlock module will be deinstalled In order to completely erase DiaCal from your computer proceed as follows First click gt Start lt and then choose gt Options lt Under gt Options lt click gt System Control lt After a double click on gt Software lt you can choose from the list the program you wish to erase here DiaCal A click at gt Add Erase lt will remove the ap plication from your computer 2 7 Adjusting the Recorder Type and the Inter face During the first start of the already installed program choose the model of film recorder you are using from the list provided The following dialog window will open automatically Illustration 1 Selection of the model of film recorder 14 DiaCal User s Guide The scroll along the side of the list makes it possible for you move up and down within the list Mark your film recorder model and confirm the choice with OK gt Help lt makes a window visible which contains another short description of the dialog box All the dialog boxes described below also contain such a gt Help lt option After the recorder model has been chosen and confirmed another dialog box will be opened automatically With this dialog box you can choose the interf
29. es will also be transmitted If you wish to store the LUT in your film recorder permanently consult the film recorder user s guide With newer film recorders you will require a USER film type and or have to call up the menu item Save LUT 7 3 14 File Stop With this command or with the symbol D you can immediately terminate the exposure process This will be noted in the Log Book page 41 as User Termination together with the date and time The film recorder leaves the frame unexposed or semi exposed and when called up again it will start with the next frame DiaCal User s Guide 45 7 3 15 File Reference File Using this menu item you can determine the desired reference file REF see page 18 for the calibration process The name of the reference file will be stored in the LUT file For slides it is standard to use the file POSITIVE REF for negative film the file NEGATIVE REF If you wish to make a reference file of your own see the Appendix page 64 7 3 16 File View Test Pattern This menu item displays the test picture the way it was exposed on the film With 4 or 16 test pictures only the first one will be shown with the corresponding gray values Depending on how you set the number of test pictures only the first field the first four fields or all 16 fields will be visible See page 55 for setting the number of test pictures With negative films the fields on the edge of the picture are black instead of gra
30. ilable 7 6 2 View Input Density Switches the display to a logarithmic presentation of the density values A surface can be made black using the density values or through percentage values This menu item makes it possible to enter measured density values Density values are expressed logarithmi cally A value of zero means the maximum white value Black surfaces attain density values of 3 0 to 4 2 An example A surface with a density of 4 will block off all but 1 10 000th of the original light 7 6 3 View Input per cent Switches the display to a linear expression in The measured values are given in The blackness of a surface can be expressed using density values or percentages This menu item makes it possible to enter the meas ured percentages A value of 0 means the maximum black value A white surface has by definition a value of 100 60 DiaCal User s Guide 7 6 4 View Load next LUT 7 6 5 View Load previous LUT All the data for a calibration are stored in a single LUT file Using these two menu items you can browse backwards and forwards among the calibrations which have already been made You can also take another look at the uncalibrated LUTs The number of the calibration or the word Uncalibrated will appear in the status line after the file name 7 6 6 View LUT This switches the display to a presentation of the LUT Zero is the maximum black value A white surface has a value of 100 7 7
31. ilm type the resolution which has been set on the film recorder and the model of film recorder These data and the commentary will also be ex posed on the test picture to serve as a record In the present version of the program it is not possible to alter all of the LUTs with the mouse at the same time In this case the pro gram defaults to the red LUT Foreshortening and stretching however is possible with all LUTs The following procedure is recommended for manual calibration la First enter the film type that you wish to calibrate and then load the LUT from the film recorder or 1b Begin with a linear LUT as the basis for calibration then enter the film type you wish to calibrate and send the linear LUT to the film recorder or 1c Open an already existing LUT file for re calibration and send this LUT to the film recorder 2 If you ve begun with la or 1b then store the LUT A file name will be suggested which contains the date and a number 3 Expose the test pictures on the film recorder 4 Develop the film 5 Re open the LUT file which had been opened as in 1c or stored as in 2 6 Change LUT with the mouse In the diagram the dark values are on the left beginning with Field 1 and the brightness values are on the right this applies to slides Now you have to try and this may take several tries to shift the color curves so that in the next exposure you 28 DiaCal User s Guide can achieve the desired
32. in the dialog window It contains the current date and a consecutive num ber This name is to be used later when you transmit the cali bration data to the film recorder The name is also visible on the test picture All calibration data is stored in the LUT file 24 DiaCal User s Guide 3 4 5 6 With the menu item Calibration 3 Choose Reference you define the appropriate reference file Generally the choice for slide film is Positive ref and for negative film NEGATIVE REF You can also make your own reference file however cf page 64 With the menu item Calibration 4 Expose the Test Pattern you begin the exposure of the test picture You can set the number of test pictures cf page 20 under the menu item Options Test Picture After exposure have the film developed With negative film you don t need to make paper prints After clicking the menu item Calibration 5 Edit Meas urement the program is ready to receive the measurement data of the densitometer for the individual test fields They are to be entered in the table on the right of the program window using the keyboard If however you have Agfa s DENS 1 or Bar bierie s Densy 250E 450E densitometer then the data are to be read in via the serial interface of your computer See page 50 for setting the densitometer When you have finished entering the measurement values click the menu item Calibration 6 Calibration in order to carry ou
33. it or put it into another index or drive A file name with the current date and a consecutive number will be suggested automatically In the dialog window it is possible to enter the new file name to gether with its drive and index If you use an already existing file name then you will be asked if the existing file is to be overwrit ten In addition this menu item can be used to export the calibration data in the CCF Format of RasterPlus by Graphx Inc USA and in the format of IMAGE Assist for MAC by the firm McLain Im aging USA In this case choose the CCF format or the Image Assist MAC format under File Type Then change the file names if necessary and store the file The file can be used to transmit the calibration data to the film recorder using RasterPlus with Win dows or IMAGE Assist on a MAC computer 44 DiaCal User s Guide Note The values for brightness and repetition rate are not supported in the export files This means that you should be certain the values being used in the film recorder are the same as those in the original LUT file 7 3 13 File Send LUT to Filmrecorder After you have already called up the densitometric calibration or the manual calibration both the menu item File Send LUT to Z j Filmrecorder or the symbol make it possible to transmit the LUT visible in the diagram to the film recorder If they are non zero the values for brightness contrast and repeti tion rat
34. l User s Guide 7 3 3 File Download LUT from Filmrecorder If you have already called up the densitometric calibration or the manual calibration you can get the LUT from the film recorder by using the menu item File Download LUT from Filmrecor der or the symbol The LUT will then be displayed in the diagram In addition the values for brightness contrast and the repetition rates as well data on the camera module and the film recorder model will also be loaded from the recorder 7 3 4 File Exit If there is still a LUT file in one of the program windows the changes in which have not yet been stored you will be asked Active LUT not stored Store the LUT now before the program ends gt Cancel lt makes it possible for you to continue working with gt Yes lt you can store the LUT before the end of the program You may also be asked for the file name Otherwise this menu item ends the application 7 3 5 File Expose Test Pattern This command exposes the test picture as required for calibration or evaluation of the gray levels First load the desired LUT file or use a LUT from your film recorder With densitometric calibration this command is normally unneces sary because the test exposure is one step in the calibration see page 23 See page 55 for the test picture options DiaCal User s Guide 41 7 3 6 File Linear The menu item Linear creates a new linear LUT which does not have a file name yet 7
35. l User s Guide 7 If you are supposed to enter something the name of the corre sponding command line will be in italics and what you are expected to enter will be in boldface type 8 DiaCal User s Guide 2 Installation 2 1 Installation of the SCSI Card For installation of the Adaptec SCSI card please read the corre sponding user s guide The installation of the Windows ASPI driver is important You can check the installed SCSI device by calling up the Adaptec SCSI Interrogator SCSI Explorer Your film recorder must be detected here and here you can also find the SCSI address Id No of the recorder 2 2 Installation of the GPIB Card For the installation of the GPIB card AT GPIB or GPIB PCI from National Instruments please read the corresponding user s guide The test programs supplied with the card IBDIAG and IBTEST must go through without an error message 2 3 Installation of the Software The installation of the hardlock version under Windows NT re quires the according administrator privilege Insert the CD into the CD ROM drive The installation program will start automatically If not select the CD ROM drive in the Windows Explorer and doubleclick the file called Setup Then choose the language you want to use with DiaCal and click the button gt DiaCal lt DiaCal User s Guide 9 After the installation is completed connect the hardlock plug to the parallel interface of your computer In case
36. llation begins When the window with the software licensing agreement appears click gt yes lt if you accept the conditions After a window with information about registering the software which you can leave by clicking gt Next lt you will be asked to enter your name the name of your firm and the serial number to be found on the enclosed registration card or disk Only when these entries have been made you will be able to click gt Next lt Check the directory into which the program is to be copied If you wish to accept the pre setting then click gt Next lt If you would DiaCal User s Guide 11 like to have it in a different directory then click gt Look up lt en ter the desired directory and click gt OK lt After you have decided whether you wish to read the README File now or later the installation is completed 2 5 Registration 2 5 1 Registration of the Hardlock Version The software of the Hardlock version is only runnable with the Hardlock plug connected to the printer interface During installa tion you have to type in the complete registration number which you find on the CD Attention If the hardlock version of the program is installed with a wrong serial number the program does not run properly You have to repeat the installation We recommend to register the software with the enclosed registra tion card via Fax or via Email 2 5 2 Registration of the Version Without Hardlock ATTENTION
37. lor density of the 16 gray level fields in the test pictures During den sitometric calibration the LUT is changed so that the density val ues and the reference values converge Reference files can be opened changed and stored In this case the display of the LUT table is switched over to a display of the density values of the ref erence file The calibration of slide films and negative films differ in the refer ence file used Generally the setting for slide films is POSITIVE REF DiaCal User s Guide 19 and for negative films NEGATIVE REF You can also make your own reference file 20 DiaCal User s Guide 4 Test Picture In the middle of the test pictures which can be exposed with this program there are either one four or sixteen test areas These test areas are in the center because the brightness of the electron beam is usually somewhat diminished around the edges With larger formats e g 6x6 the test areas are still large enough to be meas ured with a densitometer even if 16 test areas are used With the 36x24 mm format it is better to use four test areas per picture so that you need a total of four pictures for one calibration The number of test areas per picture and or the number of required test pictures with all test areas can be set using the menu item Op tions Test Pattern The test areas are gradated in their brightness so that there is a scale of gray values from black area 1 through various shades of gr
38. ou can make a number of pre settings What is particularly important is setting the Start LUT i e whether you want to begin with a linear LUT or with a LUT from the film recorder which corresponds to the film type being used You will find a detailed description on pages 29 ff DiaCal User s Guide 47 7 4 2 Calibration 2 Save LUT as You will be asked to give the LUT file a name At the same time a file name with the current date and a consecutive number will be suggested Using this name you can later load the LUT file at any time and then for example transmit the calibrated LUT to the film recorder 7 4 3 Calibration 3 Choose Reference Here the reference file is defined Normally slide film will use the file Positive ref and negative film s the file Negative Ref The reference file contains the desired values for the density of the test fields on the test pictures In densitometric calibration the LUT is altered so as to be closer to the density values of the reference file If you would prefer to make your own reference file please con sult page 64 7 4 4 Calibration 4 Exposing Test Pattern The test picture will consist of one four or sixteen pictures de pending on the number which have been set see page 55 A total of 16 different gray levels are required beginning with a black surface Field 1 through various levels of gray to a white field Field 16 With this menu item you begin exposure All da
39. out the exposure of the test pictures 7 5 11 Options Undo LUT changes This menu item reverses color changes made in the LUT The original LUT of the color chosen will be restored 56 DiaCal User s Guide 7 6 View Menu This menu makes the following commands available Ss DiaCal 16K File Calibration Options a A Densitometric Calib 100 90 Window Help v LUT Input Density Input per cent Brightness Contrast Repeats oad previous iN Egad inert LUT Illustration 17 Menu View Brightness Contrast and Repetitions Input of Density Data Input of Percentages Loading of Following LUT Loading of Preceding LUT LUT Displays and alters the values for brightness contrast and repetition Switches the display to a logarith mic presentation of the density val ues Switches the display to a linear presentation in of the measured values These two menu items make it pos sible to browse backwards and forwards through the various LUTs of a calibration Displays the LUT DiaCal User s Guide 57 7 6 1 View Brightness Contrast Repeats Using this menu item you can see and if necessary change the film recorder s tables for brightness contrast and repetition of red green and blue The illustration below shows the dialog window Red Green Blue Brightness e is js Contrast Dm a je Repeats 7 No Yalue Red Cancel
40. s d PEIZE D Help Topics ZE Help Contextual E Help about Manual a Densitometric Calibration Per2rsx Registration About DiaCal Illustration 20 Menu Help The table of contents of the user s guide activation of contextual help help with the use of the help option itself and information about the FilmKalibrator program DiaCal User s Guide 63 7 8 1 Help Contextual Help This option provides help regarding the window which is open at the moment 7 8 2 Help Help Topics This commands opens the Help File s table of contents 7 8 3 Help Help about Manual Here you will receive assistance in using the Help File itself 7 8 4 Help About DiaCal This command opens a window where you will find the version and serial number of this program as well as the name of the licen see 64 DiaCal User s Guide 8 Appendix 8 1 Drag amp Drop with the Windows Explorer Files can be opened in the DiaCal application by simply taking them from Windows Explorer and putting them in the main win dow or the application s icon drag amp drop This applies to files of the LUT REF CCF or IA types 8 2 Making a Reference File In order to make a reference file first call up the densitometric calibrator Then click the menu item File Open The dialog window Opening will then become visible Set the dialog window for reference file and then choose the reference file you wish to ch
41. s and their meaning is as follows Close Closes the active window Densitometric Calibration Calls up the densitometric calibra tion Download LUT from Filmrecorder Gets the LUT from the film recorder Exit Ends the application Expose Test Pattern Exposes the test pictures in the film recorder Linear Produces a linear un named LUT Log File Shows the log book entries Log File Delete Removes all log book entries DiaCal User s Guide 39 Manual Calibration Open Save Save as Send LUT to Filmrecorder Stop Reference File View Test Pattern 7 3 1 File Close Calls up manual calibration Opens an already existing LUT file Stores the LUT file being used Stores the LUT being used under another file name Transmits the LUT being used to the film recorder Immediately terminates the expo sure Determines the appropriate refer ence file Shows the test picture that is to be exposed preview The menu item File Close closes the active window If there is an altered LUT file which has not yet been stored a question will appear on the screen to ask if you wish to store it 7 3 2 File Densitometric Calibration This command which can also be called up using the symbol Ce makes available the program module for densitometric calibration The menu item Calibration appears in the menu line and this in turn gives access to further commands For the calibration process itself see pp 22 40 DiaCa
42. s been set 7 5 1 Options Blue LUT With this menu item you can select the blue LUT to be worked on With densitometric calibration Using Options Show only one LUT you can make sure that the input fields only accept the measurement values of the color chosen 7 5 2 Options Densitometer This option makes it possible for you to set a densitometer whose measured data can be read directly into the program via an inter face which also has to be set DiaCal User s Guide 51 Densitometer X Typ Manual Input AGFA Dens BARBIERI D 450E ensy Interface Illustration 13 Dialog box Densitometer Now you have to choose the interface where the densitometer is connected with your computer Yet we support three densitome ters The DENS1 from Agfa and the Densy 250E 450E from Babr bieri or the XRite 310 810 If you don t have one of these densitometer you have to choose Manual Input 7 5 3 Options Green LUT With this menu item you can select the green LUT to be worked on With densitometric calibration Using Options Show only one LUT you can make sure that the input fields only accept the measurement values of the color chosen 7 5 4 Options Interface Here you can set which interface the film recorder is to be con nected to As interface either the GPIB or the SCSI are available The appropriate interface card and the corresponding software must be installed in th
43. ser s Guide Setup Filmrecorder EN Filmtype Agfa Positiv Close Agfa Negativ No IM Kodak Positiv Help 2K E US Besolution E Geet oo K Load Film P Left 2048 Width 14096 os Top 1366 Height 2732 GER Pacing fo Removal Film IV auto CRT Calibration after fi 0 P Filmend IV Filmend Request Ser CRT Calibration Setup Filmrecorder Reset z LUT Data Range C BBit GG 12Bit End of Film Module 35mm Model CCG GmbH PCR 81 12 Illustration 8 Dialog box Setup Filmrecorder In the lower part of the dialog box is a data display with the end of film signal the resolution setting in Pixels width by height the camera module as well as the film recorder model All the data displayed corresponds to the values currently set on your film recorder and have been adapted to the options on the recorder which has been connected The Individual Functions 6 1 Film Type Enter the desired film type number in the input field or choose it from the list of films given and then click gt Setup Filmrecorder lt DiaCal User s Guide 31 6 2 Resolution In the resolution field click either no 2 or no 4 in the 16K version with the corresponding recorder there is also 8 or 16 Then click gt Setup Filmrecorder lt The pictures will then be exposed with the following number of lines 2K or 2048 4K or 4096 8K or 8192 or 16K or 16384 6 3 Exposure
44. shades of color and degrees of bright ness in the measurement areas Suppose for example the brighter surfaces have a bluish cast Then you pull the blue curve down a bit on the right thereby reducing the amount of blue in the exposure 7 Store LUT file 8 Send LUT file to film recorder 9 Expose test picture 10 Develop film 11 If necessary repeat the process beginning with step 5 Important Tip In order to later expose pictures with the film recorder be certain that the corresponding LUT is active With newer film recorders we recommend that after you have transmitted a LUT to the film recorder you call up the command Store LUT from the menu of the film recorder Otherwise the LUT which has been transmitted will be over written every time the film recorder is reset DiaCal User s Guide 29 6 Recorder Controls This part of the program makes it possible for you to operate the film recorder using the software when the controls have been acti vated either through the symbol bar Sa or through the menu item Options Setup Filmrecorder Using the dialog box which now becomes visible you can set the film type the resolution and the exposure counter In addition you can call up the control panel on window for the film recorder itself loading removing or advancing film In addition it is also possible to carry out a CRT balance start a reset of the film re corder and set a LUT data range 30 DiaCal U
45. t the calibration It is advisable to then carry out an other test exposure step 4 and once again measure the gray level fields Step 5 If necessary you can repeat steps 6 4 and 5 for re calibration If having carried out the densitometric calibration several times and you are still not satisfied with the results for example if you want warmer shades of gray then you still have the option of mak ing a reference file of your own see page 64 You can leave the calibration program at any time menu item File Close if you wish to interrupt calibration If you wish to DiaCal User s Guide 25 continue calibration later load the file through the menu item File Open using the file name from step 2 Important Note If later you wish to expose pictures be sure that the corresponding LUT in the film recorder is active With newer film recorders we recommend that after you have transmitted a LUT to the film re corder you call up the command Store LUT from the menu of the film recorder Otherwise the LUT which has been transmitted will be over written every time the film recorder is reset 5 3 Manual Calibration This function is called up through the menu item File Manual Calibration or through the symbol bar The following screen will appear 26 DiaCal User s Guide J DiaCal 16K Bisi ES File Options View Window Help sl eis lr gelen So Spy sl ol al J Manually Calibration Per2rsx_lut Comment
46. ta re garding the test picture are noted on the test picture itself In this way you will always have at your disposal the following informa tion the commentary text the file name the name of the refer ence file the file series the module name the film type setting the resolution as well as date time and picture number 48 DiaCal User s Guide 7 4 5 Calibration 5 Edit Measurement When you have the test picture use a densitometer to measure the density or percentage values of the different surfaces These val ues are then to be entered into the corresponding input fields of the film recorder calibrator If you have an Agfa Densitometer DENS 1 or Barbieri Densy 250E 450E or XRite 310 810 then you can read in the values using a serial interface see page 50 This saves reading and typing in the values Set the cursor in the input row whose field you wish to measure The program automatically enters the measured values in the input fields and then positions the cursor on the next line The parameters of the seriell interface baudrate and dataformat etc are fixed The baudrate of the densitometers had to be 1200 With the Agfa DENS1 adjust the switch on the bottum to BR1200 with the densitometer Densy 250E 450E use the dataformat Barbieri in the densitometer menue If you have a densitometer without a seriell interface choose Ma nual Input 7 4 6 Calibration 6 Calibration This menu item computes the correcte
47. this function you can calibrate the film recorder with the help of a transmitted light color densitometer It is called up via the menu item File Calibration or through the symbol bar You will find the individual steps of densitometric calibration in the calibration menu DiaCal User s Guide 23 a DiaCal 16K File Belt Options View Window Help setim ype and starti 2 Save LUT es 3 Choose Reference 4 Expose Test Pattern 5 Edit Measurement 6 Galibraton Illustration 6 Menu Calibration All calibration steps which cannot be called up are presented as gray all calibration steps which have been completed have a checkmark next to them The next step in calibration can be called up via the symbol z 8 The following procedure is recommended 1 2 Begin with the menu item File Linear Call up the menu item Calibration 1 Choose Film Type and Start LUT In the dialog box which is then displayed set it for the desired film type and resolution cf the illustration on the following page Here you can choose the Start LUT with which you wish to begin calibration You have two possibilities linear or loading from the film recorder Generally speaking you can work with the second possibility which is the default setting see also page 29 Click the menu item Calibration 2 Save LUT as You will now be asked to give the LUT file a name If you wish you can use the name which has been pre set
48. tions via either the file menu or the symbol bar The structure of the menu depends on the window in which you happen to be Commands which are not available are shown in a lighter shade of gray This chapter will explain all the menu items in order 7 1 The Menu Structure Depending on the program window which is in use the menu line will show various menu items Inthe Densitomentric Calibration window there are the following menu items File Calibration Options Display Window and Help You can call up one of these menus either by simply clicking it or by holding down the Alt key and striking the appropriate underlined letter The menu is now opened and the sub points are available These sub points vary with the program status but all are listed in alphabetical order 7 2 The Symbol Bar Using the symbol bar you can call up various commands by simply clicking with the mouse This is for calling up commands quickly but they can also be reached through the menu The symbol bar is horizontal and is located under the menu bar 36 DiaCal User s Guide oad and display expo File Load Image sure alibration with a color File Calibration densitometer Opening a LUT file File Open LE Storing of a LUT file File Save amp amp gt Loading a previous LUT View Load previous LUT Loading the following View Load next LUT LUT Transmit LUT to film File Send LUT to Filmre ecorder corder Loa
49. y 7 4 Calibration Menu This menu is only accessible if you have already called up the den sitometric calibration see page 22 for the procedure and page 39 for the selections available With manual calibration this menu is not present Densitometric calibration can be called up fastest by using the symbol RW 46 DiaCal User s Guide a DiaCal 16K File EHE Options View Window Help 3 Choose Reference 4 Expose Test Pattern 5 Edit Measurement Bieallbratien Illustration 11 Menu Calibration The calibration process has already been described in detail in the Practical Operation section see pp 22 so here we will concen trate more on the additional support The only menu items which can be called up are those which can or must be used as the next step in the calibration process If for example you have called up the menu item File Linear all the menu items are gray and there fore inaccessible except for 1 Choose Film Type Set Start LUT Calibration steps which have already been carried out have a checkmark next to them With the help of the symbol z you can carry out the next calibra tion step directly If you position the mouse indicator above the symbol the status bar will show the next calibration step which will be called up after clicking 7 4 1 Calibration 1 Choose Film Type and Start LUT If you click this command the dialog window for film recorder controls is opened and here y
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