B&W 62MM UV/IR (486M)
Contents
1. no difficulties for autofocus systems PROFESSIONAL Cross Screen 4x 6x and 8x B W effect attachments make unusual photos possible Suitable motifs become even more attractive This results in pic tures with a look that stands out posi tively when it is consciously employed Cross screen filters consist of high quality optical glass into the surface of which fine grating structures are integrated Depending on the form of grating light sources or bright reflections shine in a multi star pattern that surrounds them It is important that the light sources are bright and dot shaped Then the sub tly colored star effect forms in very high definition PROFESSIONAL 25 Effect Filters Graduated filters reducing extreme contrast Graduated filters are colorless and com pensate excessive contrasts between the sky and the landscape Clouds gain defi nition sky blue acquires depth The filters can be rotated in the mount in order to adapt the graduation to the horizon If exposure metering is done through the filter a minus correction of approx 0 5 is advisable B W Graduated Filter 502 Dark Gray Extremely well defined clouds and a full bodied instead of milky tone in the sky these are the effects produced by this already stronger graduated filter It attenuates the light in the darkest zone by two f stops transparency 25 Very high contrast landscape motifs without loss of definition bec2. Filter is highly effective and is available with a single coating or with a high grade MRC finish PROFESSIONAL F Pro circular polarizing filter F Pro polarizing filter 17 Fr E mug Pr a Pri U nA di 17 Mi O I NE ny 101 102 103 106 and 110 Gray filters creative using less light Gray filters or neutral density ND filters are used if too much 100 light restricts creative possibilities They reduce the light in ac EA cordance with their density They therefore allow longer expo NS sure times or more widely opened apertures Applications are highly varied and in some cases experimental For very bright motifs in the snow or on the beach the aperture would also have to be closed despite minimum exposure time This would mean losing the option of short depth of field e g for por traits Gray filters can produce wipe effects in movements if the exposure time can be extended with the required aperture A waterfall then no longer appears to be frozen but as a flowing motion Gray filters create ingenious effects in architecture or urban photography With long exposure times of several hours people walking through the shot are blurred or not reproduced at all For physical reasons very dense filters possess a warm Transmission T tone which can be compensated in image processing NEW All gray filters are available with sin
3. MU mum t MA Se y a De er TT A Y E A a T IET v a ERS a ia NP ON J ERA i A V y EIU z 5 a Y 5 om ae 1 L 5 ki 2x5 1 as La S Sir Ta a t a E ta B W K semann Polarizing Filter For this high end polarizing filter the foil pieces are selected individually for maximum color neutrality Following ce menting between high grade optical glass additional grinding and polishing takes place This guarantees outstand ing sharpness even with very bright apo chromatic lenses The latest cementing technique ensures lasting stability even in damp climates Available in the Profes sional Line as linear and circular polariz ing filters and some circular filters also come with MRC Available in the Premium Line as circular polarizing filters with MRC nano finish PROFESSIONAL XS Pro Kasemann type circular polarizing filter F Pro Kasemann type linear polarizing filter B W Circular Polarizing Filter The standard circular polarizing filter is equally suitable for both analog and digital cameras Linear polarization can falsify exposure or AF metering if beams are split inside the camera by mirrors or prisms Circular polarization prevents this while otherwise retaining the same effect The B W Circular Polarizing
4. Soft Pro filters produce a professional soft focus effect And for action photography whether it is sailing or mountain biking B W pro tection filters shield the front elements of expensive lenses from scratches and moisture Experience the fascination of precise creativity with your digital camera thanks to high quality B W filters By the way This brochure is only part of our overall program You will find more filters and tips at www schneiderkreuznach com fotofilter Precision engineered mounts The stable brass mounts are made on high precision CNC machines Knurling on the front edge ensures non slip hand ling when attaching and removing Strict quality controls guarantee exact adher ence to the target values Matte black surface to prevent reflections Mount Types Filter mounts the mechanical specialists The important role played by the filter mount and its mechanically complex task are often underestimated Although mounts are supposed to fix the high quali ty filter glass in position for life they must not cause any sharpness reducing tension in the glass B W manufactures various mount types mainly out of stable brass on CNC machines The filter glass is screwed into a high precision retaining ring applying a pre specified torque Be sides the excellent F Pro standard mount which is suitable for telephoto lenses up to the most common wide angle focal lengths B W offers the very flat XS P
5. W Filter Mount F Pro The Standard Filter Mount F Pro has high mechanical stability despite its shallow design It can be used on most wide an gle lenses without the danger of vignett ing However exact data regarding focal length and angle of view limitations are not possible because vignetting depends not only on the height of the filter mount and the angle of view but also on the tube design of the front of the lens As a guide this filter mount can be used with out vignetting on 35 mm camera lenses approx 63 diagonal angle of view In addition most wide angle lenses with 28 mm approx 75 angle of view and in many cases even with 24 mm approx 84 angle of view can be combined with the F Pro mount without the risk of vi gnetting The same angles of view apply to lenses in digital cameras Despite the thinner design others filters snap caps or lens hoods can be attached easily and safely to the front thread Another advantage of the new F Pro filter mount the filter glass is no longer held in place from the front but from the back by the retaining ring This prevents the retaining ring from being accidentally loosened during the removal of an addi tional filter or a lens hood that has been screwed in too tightly Available in 2452525 273053557 39 40 5434048 49 5255 58 60 62 72 71 82 396 25 105 12 and 122 B W Digital Pro Digital photography in particular benefits from quality filters The Digit
6. around 70 it should only be used without a filter in order to avoid vignetting In its collapsed state the hood increases the lens length by less than one centimeter e The B W Lens Hood 900 is tailored to standard lenses and short telephoto focal lengths Its inner ribbing enhances the light absorbing effect of the matte black surface In its collapsed state the rubber hood increases the length of a lens by only one centimeter up to 77 mm filter thread B W Metal Lens Hoods B W metal lens hoods convey a reassuring stable impression by their very appearance The black anodized aluminum reliably blocks stray light and the precision engineered tubes have black inner ribs for even greater absorption of unwanted light Here too three types are available for numerous filter sizes e B W Metal Lens Hood 970 suitable for wide angle zoom lenses up to 70 diagonal angle of view e B W Metal Lens Hood 950 for standard lenses and short telephoto lenses e B W Metal Lens Hood 960 with a narrower and longer tube for telephoto lenses B W Snap Cap Pro 311 Hard plastic cap with two spring loaded plastic claws opposite each other that engage the front thread of the lens or filter Simple removal by pressing the two buttons together means fast and uncomplicated one hand operation Available for threadisi zes 52 55 50 02 72 and 77 B W Slip on Front Lens Cap 300 Protective cap made of flexible plastic material that slips ov
7. 17 cm and 36 x 28 cm sizes each with a pro tective plastic envelope B W Lens Cleaner Cleansing Spray Persistent marks on highly sensitive optical sur faces cannot be removed with a cloth alone The B W Lens Cleaner has been developed for this purpose It is a cleansing solution with highly effec tive cleansing agents which leave no unwanted res idue on the glass The propellant free pump spray is simple to use non flammable and bio degrad able Indispensable for photo trekking or outdoor action photography NEW Lens Cleaner Il is also suitable tor LCD TED screens B W Collapsible Lens Hoods Collapsible lens hoods are made of high grade rubber Their advantage compared to fixed lens hoods made of plastic or metal is that in their col lapsed state they protrude only a short distance This means that the lens hood can remain attached to the lens and together with the camera will also fit into a tight photo bag Lens hoods are usually regarded simply as a kind of sun visor In fact stray light occurs not only by sunlight obliquely striking the lens but also due to bright ground surfaces snow beach diffuse light or in object photography bright surround ings such as a light table Blocking stray light can considerably improve the image quality of even the most expensively coated lenses e The B W Lens Hood 920 is designed for wide angle zoom lenses with angles of view up to 70 In the limit range of
8. B W Filter The whole world of filters for digital and analog pi gt N Made in Germany dp ja I N FILTER B W Filters High tech Made in Germany Mount Types Protection Filters Clear UV Polarizing Filters Kasemann Circular Polarizing Filters Gray Filters Close Up Lenses Close Up and Macro Lenses Effect Filters Soft Focus Attachments Graduated ND Filters Redhancer Special Filters Infrared Filters Blocking Filters B W Filters Accessories The passion for optics with precision quality and longevity High tech made in Germany HNA N N WW 0 EEE 1 eee eee Innovation and experience Made in Germany B W celebrated its 60th anniversary in 2007 Following the merger with Jos Schneider Optische Werke GmbH in 1985 the company moved into its current premises in Bad Kreuznach Under the umbrella of Schneider Kreuznach a lively technology transfer developed B W has succeeded in establishing itself as one the world s leading filter manufacturers It has for exam ple made decisive progress in surface coating B W is the first filter manufacturer in the world to offer MRC Multi Resistant Coating The world famous Kasemann type polarizing filter with its outstanding quality has been produced by B W since 1989 Today state of the art production equipment precise CNC machines and highly advanced reflection reducing tech nology guarantee top quality w
9. al Pro filter mount is geared specially to the design and mount diameters of digital cameras and camcorders The silver hard chrome plating on the outside follows the pale color trends of digital cameras and forms a harmonious unit with the lenses In terms of its design this high quality mount is based on the F Pro model There are cur rently 13 mount sizes available between 30 and 62 mm B W Digital Pro mounts are available with the filter tyoes 010 010 MRC 486 Kasemann type circular MRC and C Pol polarizing filters With 30 30 5 35 5 37 39 40 5 43 46 52 55 58 and 62 Line B W oversized wide angle mount extra wide In the super wide angle range even nar row mounts such as the XS Pro series cannot completely prevent vignetting For such extreme special cases we have the B W oversized filter mount extra wide EW The mount has oversized di mensions The mount and the filter glass protrude beyond the screw in thread on the lens side Even with ultra short focal lengths with a narrow tube this safety gap ensures that light incident at a highly oblique angle in the corners of the image is not impeded This is necessary in partic ular for adjustable view and large format cameras as well as for special panorama cameras Available in EW lens 62 67 72 77 82 86 75 105 110 112 and 122 PROFESSIONAL The guardian angels for lens and imag the bodyguards against the protective filter
10. d Due to the low residual reflection 0 5 MRC re liably prevents ghost or multiple images which can be caused by back reflection from the image sensor Furthermore MRC protects the filter from scratching with increased layer hardness thereby preserving the high optical quali ty In addition MRC is dirt and water repellent which makes cleaning easier NEW The MRC nano coating all XS Pro Digital filters have it The outer layer of MRC nano has been strengthened in its effectiveness The nanotechnology based characteristic lotus effect produces a better beading effect in water This makes cleaning the filter surface even simpler and faster B W Filter quality without rough edges for optical Doo eod Threaded filter mounts The quality of high grade filters is determined by various crite ria Many photographers are aware that the plane parallelism and transmission properties of glass and the coating are key factors for image quality What fewer of them know is that the filter mount must also meet high requirements as a link in the high tech chain The main purpose of the mount is to hold the fragile filter glass in place firmly yet without play for a long time However the glass must not be subjected to mechanical tension because even the tiniest deformations can result in visible unsharpness Nevertheless the filter must also be able to withstand a strong grip And even after frequent use it must ensure easy an
11. d infrared light In digital cameras and camcorders without full filtering in front of the image sensor it prevents color casts and unsharpness The brilliance and sharpness of the im ages are increased This takes place by interference between vacuum deposited layers and not by absorption via colored glass This principle is ideal for angles of view up to 60 or smaller The filter has no exposure factor PROFESSIONAL Tip Digital infrared photography Whether or not a digital camera is IR sensitive can be determined with an IR remote control Instructions can be found on the Internet The IR focus point is somewhat further away than that for vis ible light With the filter attached white balance is performed automatically or preferably manually The IR photos are optimized in the image processing pro gram Increase contrast automatically or in the histogram convert color images to black and white or experiment with individual color channels leaving the red channel on maximum No matter whether digital or analog infrared photography is experimental by nature 29 021 022 023 039 040 041 090 091 Consciously composed black and white photography enjoys undiminished popu larity However the conversion of the colors into gray scale values does not correspond to the brightness percep tion of the human eye in neither film nor digital photographs Filters are there fore indispensable for black and white photog
12. d precise attachment and removal A non slip surface quality makes handling easier The mount thickness should be kept to a minimum in order to prevent vignetting at short focal lengths B W filter mounts meet these requirements to perfection As a rule they are made of brass on highly accurate CNC machines The filter glass is kept in place securely but without tension by a threaded retaining ring that is manufactured with equal accuracy Fine grooving knurling on the front makes attachment easier Black or silver hard chrome plating clearly legible labeling and usually matte black inside surface ensure lastingly stable image quality and functionality To avoid vignetting in the image corners at extreme wide angles despite the slim design B W provides various mount types that cater for the different angles of view B W quality A brand that keeps its promise Behind the globally recognized B W filter quality is a continuous process of optimi zation and quality control which already begins with the raw glass blocks For the production of the high precision B W filters Schott colored glass is used almost exclusively because Schott guarantees the very highest glass quality In Bad Kreuznach computer controlled grinding and polishing machines produce the highest filter quality from this raw material in an impressive range of designs and diameters Special production pro cesses remain the domain of the optimiz ing handcraft
13. ept open aper tures can also be used PROFESSIONAL 23 5493 3 199443 Soft Focus Attachment Soft Pro precise beauty softener The term soft focus attachment does not do justice to this soft filter The filter delivers sharp pictures which are softly overlaid with unsharpness Details such as eyelashes do not taper into unsharp ness while skin blemishes are gently covered up Small mini lenses are dis tributed randomly on a precisely plane parallel glass disc They scatter the light and overlay the sharp core image with hazy diffuse halos This opens up deep shadows while highlights themselves are hardly blurred but instead form a shim mering aura in the darker surroundings Professionals even in Hollywood films use these stable glass filters when aiming for perfect beauty shots The effect can not be achieved with image processing software e g Gaussian blur PROFESSIONAL B W Soft Focus Attachment Soft Pro A special soft focus attachment with ir regularly distributed micro lenses on precisely plane parallel clear glass The sharp core image is overlaid with a soft unsharpness Ideal for dreamlike femi nine portraits softly shimmering backlit blond hair soft dream landscapes and all without much loss of sharpness The B W Soft Pro largely retains the overall con trast working almost independently of focal length and aperture thereby allow ing control of the depth of field It poses
14. er drops The advantages are easy cleaning and maximum reflection reduc tion Also available for super wide angle lenses PROFESSIONAL P Pro 007 Clear B W Protection Filter UV The classic among the protection filters blocks the unwanted UV component contained in daylight The invisible UV light occurs more in pure sea air and in the mountains and can lead to blur and blue cast The colorless UV filters are suit able for both analog and digital cameras and ensure more brilliant pictures They can remain permanently on the lens to protect it from dirt and damage A high grade MRC or MRC nano finish provides optimum reflection reduction PROFESSIONAL F Pro UV XS Ro O00 Glear Tip Multi Resistant Coating with pearl effect To guarantee perfect image quality fil ters must be kept clean This is supported by the hard MRC finish with its dirt and water repellent coatings This is the best way to clean filters Never rub off dry loose dirt particles but remove them first with compressed air if possible without touching or a soft lens brush Breath on the particle free filter surface and clean it gently with a soft B W Photo Clear microfiber cleaning cloth For difficult stains B W Lens Cleaner spray is helpful Little effort for constantly per fect image quality Do not use paper tissues for cleaning as their fibers cling to the filter due to being electrostatically charged XS Pro UV All ph
15. er the outer front rim of the lens or filter It remains in place by means of friction of the slightly elastic slip proof plastic material Also very simple to handle Available for lens or filter front rim diam Giers 01 27 30 32 37 42 51 54 57 80 and 70 B W Slim Front Lens Cap 305 This cap corresponds in all its features to the 300 except for thickness The Slim 305 is made of flex ible plastic and tailored specifically to the flat Slim filter mounts This flat lens cap is advantageous when the front rim of the lens is slightly larger than the Slim filter so that a normal lens cap could not be slipped on completely Available for the follow ing Slim filter mounts 49 52 55 58 60 62 67 72 77 and 82 or for the corresponding outer diam eters 52 55 56 61 62 65 70 75 80 and 85mm B W Rear Lens Caps 330 to 335 Hard protective cover for the camera side rear bayonet or thread of the lens Available for lenses of Canon FD 330 Minolta MD 331 Nikon 332 Pentax K 334 and M 42 thread 335 B W Camera Body Covers 320 to 325 Hard protective covers for the bayonet or thread lens mounts on camera bodies Available for SLR cameras with the lens mounts Canon FD 320 Minolta MD 321 Nikon 322 Pentax K 324 and M 42 thread mounts 325 These camera body covers can also be used as front protective covers on tele converters provided that their optical sys tems are sufficiently recessed in their mounts Nylo
16. gle coating or high quality B W MRC finish N B Gray filters must not be used for direct visual observation of the sun risk of blindness They allow UV and IR rays which damage the eyes to pass through Special sun filters for direct observation of the sun are available from astronomy suppliers 20 Gray Filters 101 102 103 106 and 110 B W Gray Filters 101 and 102 The gray filter series begins with low light attenuation Type 101 reduces the light by exactly one f stop filter factor 2x type 102 by two f stops filter factor 4x The moderate extension of the exposure values is recommended for indoors or outdoor shots with little light At lower shutter speeds creative soft focus ef fects wipe effects and flowing effects for waterfalls can be achieved Opening the aperture allows selective focus instead of deep focus a desired effect when film ing videos with DSLRs PROFESSIONAL B W Gray Filter 110 With exceptional light reduction by a full ten f stops filter factor 1000x the 110 continues what begins with the 106 ex perimental photography with very slow shutter speeds Continuous light trails walking people on roads and squares be come indistinct or even invisible The flowing effect for moving water becomes even more extreme B W Gray Filter 103 This already quite strong gray filter re duces the light by up to three f stops equivalent to a filte
17. hich is amongst the very best to be found on the world market When it comes to technology products a 60 year company his tory is corroboration of recognized top quality Comprehensive know how and state of the art production technology have made a name for the proverbial B W filter quality of Schneider Kreuz nach throughout the world B W filters also perform creative tasks in digital photography Improving photographic results without touching the data record can only be done with first class filters The name B W guarantees perfect image quality Perfection for the light all the best for the picture For example with surface coating technology single coat MC MRC and MRC nano Trust is good control is better B W filters for better quality in digital photos Particularly in digital photography B W filters are important tools for improving image quality A B W polarizing filter for example provides more saturated col ors and higher color contrasts because the bluish gray haze typical of sunny days is filtered before the image sensor gener ates the data record If UV or IR radiation causes haze or blur a UV IR blocking filter in front of the lens can ensure more brilliance and detail sharpness without the necessity for coarsening resharpening in the image program Filters solve problems before they occur in the image sensor Image processing programs on the other hand cannot conjure up information which is no
18. n Fabric Filter Pouches These filter pouches are made of padded heavy duty and water repellent nylon fabric with practi cal Velcro fasteners and a white space for labeling They provide excellent protection for the indi vidual filters Available in three sizes e E 1 11 5 x 11 5 cm for filter sizes up tony e E 2 14 5 x 14 5 cm for filter sizes up to 105 e E 3 20 0 x 20 0 cm for filter sizes larger than 105 B W Filter Pouch B4 and B6 The folding foam padded pouch made of flexible plastic material can hold up to six filters Snap fas teners and transparent inner compartments ensure quick easy access and the secure positioning of the filters When folded the pouch also fits into the front compartment of a photo bag for fast convenient removal Filter pouch B4 is suitable for filters sizes up to 82 max 4 filters and filter pouch B6 up to 62 max 6 filters B W Individual Filter Case B W provides various cases for the safe dust proof storage of filters The flat handy filter cases made of hard but transparent plastic let you see right s avvay vvhich filter is stored inside A shock absorbing foam insert prevents slip it and rattling The sturdy individual cases are available in three sizes with additionally available inserts reducing the dimensions for smaller filters e Size BH for filters and special effects attach ments up to 52 with insert up to 48 e Size D f
19. o special filters perform con trasting tasks The UV IR Blocking Filter 486 blocks unwanted ultraviolet and frared light components that can produce ghost images and sharpness reducing in terference The images gain sharpness detail and fine color gradations Digital cameras have similar filters in front of the image sensors nevertheless consider able residual transmission is detectable in the infrared range A gap that is closed by the UV IR Blocking Filter 486 It is precisely this gap that the Infrared Filters 092 and 093 make use of Digital cameras with sufficient IR residual sensi tivity take highly typical infrared picture when the visible light is blocked The black red Infrared Filter 093 is ideal for this task The image section is selected and infrared focusing performed before attaching the filter B W Infrared Filter 093 This filter blocks visible light up to 800 mm almost completely It is dark red almost black With analog IR film or IR sensitive digital cameras it delivers a fantastic wood effect white leaves and a typically dark sky The exposure val ues vary according to the digital camera model being used and are best deter mined by experimenting They are usually in the range of a few seconds Focusing is performed first without a filter using IR focus correction PROFESSIONAL B W Digital UV UR Blocking Filter 486 This filter has a steep cut off effect for unwanted ultraviolet an
20. of experienced specialists Strict quality checks in all key production steps ensure seamless production stan dards B W quality does not come about by coincidence but is clearly defined to manufacture exactly plane parallel filter discs without arching or wedge errors deviating thickness which could lead to partial image blurring The filter glass must be completely smooth because roughness results in scattered light and an unwanted soft focus effect B W filter glass meets the highest requirements of camera and lens manufacturers and guar antees optimum imaging quality The continuous new development and further evolution of the B W filter models and the final inspection of each individual filter mean that users can always achieve the best possible photographic results It is therefore important to give the same consideration to quality when buying a filter as when selecting your lenses 60 years of know how guarantee top filter quality to meet global market standards Creative filter technology the fascination of precise design Close up and macro lenses provide a simple way of exploring new motif worlds With infrared filters you make the invisible visible and create artistic fabu lous images For high color contrasts that still look authentic a polarizing filter is still the best option despite the possibilities offered by photo editing programs Fur thermore polarizing filters can eliminate many reflections The B W
21. ome possible The graduation zone allows some degree of tolerance but for a natural transition the horizon line should not be positioned too far from the center of the image PROFESSIONAL Redhancer luminance for warm tones This special filter intensifies the reproduc tion of orange red and brownish color components without completely blocking bluish components The B W Redhancer 491 does not achieve its special transmis sion through coloring but through the chemical composition of the glass Be sides landscape and nature motifs the filter effect is also suitable for advertising photography The shot appears particu larly natural if reddish areas predominate and there is no pure white in the image Without Redhancer Pale red orange tones With Redhancer Fresh vibrant red orange B W Redhancer 491 This special filter amplifies the reproduc tion of reddish tones from orange and red to reddish brown Autumnal motifs flowers or fruit with reddish colors as well as red painted objects cars boats or reddish rocks all gain luminance The Redhancer 491 is even more effective in combination with a polarizing filter which removes the bluish gray haze Fabulous autumnal landscapes full of luminance Indian Summer can be captured Filter sequence pol filter at the front with the Redhancer behind PROFESSIONAL 27 Special Filters Infrared digital special filters for the invisible These tw
22. or filters up to 82 with insert up to 62 e Size E for filters up to 105 Y Made in Japan Made in China 33 You will find overviews of the product range and further information on the B W filters on the Publisher Jos Schneider Optische Werke GmbH Business Unit B W Filters Ringstra e 132 D 55543 Bad Kreuznach www schneiderkreuznach com Concept and Design Scheufele Hesse Eigler Kommunikationsagentur GmbH Cretzschmarstra e 10 D 60487 Frankfurt am Main www scheufele online de Photography Achim K R sch cover page 4 6 7 25 26 31 and product shots Gaby Reichert page 15 18 21 Frank Widmann page 16 27 28 Copy IdeaTorial Redaktionsteam Heinz Jurgen Kruppa Immenbuschweg 5 D 27389 Vahlde www ideatorial de Translation lan McCaughtrie D 22926 Ahrensburg Jos Schneider Optische Werke GmbH Business Unit B W Filters Ringstra e 132 D 55543 Bad Kreuznach Phone 49 671 601 122 Fax 49 671 601 302 filterOschneiderkreuznach com www schneiderkreuznach com 4a Schneider K 4 KREUZNACH 2010 09 1066263
23. otographic AN USE for B W polarizing filters gray filters close up lenses effect filters and special filters Not forgetting the B W filter accessories But see for yourself reflection reduction par Radiant white clouds against a deep blue sky or saturated fall colors are no coincidence Polarizing filters pol filters for short block the bluish gray veil from the diffusely polarized light of the sky They augment the purity of true colors and increase color saturation Polarizing filters are amongst the most impor tant filters in digital photography They can be rotated in the mount allowing the visible regulation of the elimination effect in the viewfinder or on the display The filter factor is two to three f stops The maximum effect is achieved at a shooting angle of 90 to the sun For an even effect in the picture 35 mm or 28 mm in 35 mm film format should be the minimum The second beneficial effect of pol filters is the reduction of reflections on non metallic surfaces water shop windows lacquer Objects behind these surfaces including writing behind reflecting lacquer are made visible a fascinating way to enhance images without using photo editing Circular pol filters are recommended for digital cameras Polarizing Filters B W RN J 1 i k I A 8 Y j h j u b e ini a er f Er a a e
24. r factor of 8x It offers more options than weaker gray filters This is already sufficient for successful time exposure effects and it can also be regarded as a universal gray filter in digi tal photography White balance with the filter ensures optimum color neutrality Tip Remember to use a tripod for longer exposure times PROFESSIONAL For physical reasons the filter produces a slightly warm tone which can be elimi nated by white balance or an image pro cessing program PROFESSIONAL B W Gray Filter 106 With its light reduction by six f stops filter factor 64x this filter allows even more extreme experiments This includes time exposure effects such as light trails flowing effects for moving water or walk ing people who become indistinct in soft focus A physically induced higher red transmission produces 8 slightly warm tone If necessary this can be eliminated by white balance or an image processing program PROFESSIONAL kfz 21 22 Special Filters Close up lenses reduce the minimum focus produced clear details Close Up Lenses small world in XXL Close up lenses reading glasses for your lenses Would you like to explore fantastic worlds in miniature Close up lenses open up new motifs in an inexpensive way Like reading glasses close up lenses move the focus range into the close up zone The effect increases with the diopter number and the focal length of the lens Fo
25. r shorter focal lengths in digital pho tography stronger close up lenses are therefore recommended The image scale describes the effect A scale of 1 3 ren ders an object at a third of its original size on the film sensor Close up and macro lenses are simple aids which are suitable in particular for three dimensional ob jects flowers and pictorial photography less for technical reproduction purposes Sufficient stopping down increases the sharpness and the depth of field Tip Use a tripod for longer exposure times Close up lenses 1 2 3 4 and 5 Macro lenses 10 in special mount 49 52 55 and 58 B W Close Up Lens NL 4 With 4 diopters this close up lens is pretty powerful With a focal length of 50 mm it attains an image scale of approx 1 3 With 100 mm focal length this even advances to 1 1 9 To increase brilliance and sharpness stopping down by about two f stops is recommended With the B W Close Up Lens NL 4 calyxes flower heads already become too large for the format PROFESSIONAL B W Macro Lens With extremely high 10 diopter power this close up lens goes beyond the nor mal scope Its high refraction is ideal for the short focal length of digital photogra phy Even at a focal length of just 50 mm you enter the macro range with an image scale of approx 1 2 To increase depth of focus stopping down by three f stops is recommended If graduated sharpness is part of the image conc
26. raphy A simple rule explains the mode of ac tion The filter s color is made lighter the complementary color is made darker An apple tree serves as a good example When using a red filter a red apple ap pears lighter and the green leaves are reproduced darker In contrast a green filter lightens the leaf green and darkens the red of the apple Yellow filters very visibly increase the contrasts by darkening the sky in land scape photos The pictures gain more brilliance with plant green receiving more differentiated reproduction A medium yellow filter is regarded as the standard filter in black and white pho tography An orange filter increases this effect making a diffuse sky of clouds appear much more dramatic The skin blemishes of a model red patches are also concealed The group of the red filters increases this effect to the point of estrangement A summer landscape photo with a cloudy sky is transformed into a dramatic storm mood wood effect and a dune land scape becomes a moonscape with an almost black sky PROFESSIONAL TIP On digital cameras with a black and white mode you can achieve these effects while taking the shot and view them on the camera monitor Subse quent conversion using image process ing programs is unnecessary Black and white filters also improve the resolution and sharpness of the image With these filters the lens is used only in a narrow band or even monochromatic color spec
27. ro mount for super wide angle lenses This eliminates vignetting For even more ex treme focal lengths there is the Oversized mount on which the filter glass protrudes far beyond the thread of the retaining ring more under Filter mounts It is the high grade mounts that finally make a B W filter a true piece of high tech that you can rely on for many years to come Line Premium Line The increasingly short focal lengths of zoom lenses for digital system cameras in crease their proneness to vignetting when attachments such as filters are used For this reason B W has developed the new Premium Line series with an extremely narrow filter mount XS Pro Digital It is ideal for demanding DSLR photography with short wide angle zooms beginning at 12 mm APS format Despite its small construction depth this mount is fully equipped with a front thread for further accessories such as lens hoods or snap in lens caps This filter series is also made of brass and comes in matte black to prevent reflections Three filter types are available 007 Clear MRC nano UV 010 MRC nano and the XS Pro Digital polarizing filter The last is supplied exclusively as a Kasemann type circular MRC nano polarizing filter The Premium Line XS Pro Digital filters are available in 49 52 55 5860 62 67 72 77 and 82 Thickness comparison left standard mount F Pro right XS Pro Digital B W 007 Clear XS Pro Digital Mount Types B
28. s from B W Filter Active photography demands a great deal of cameras and lenses It therefore makes sense to protect the sensitive front element of the lens against flying sand dust fingerprints and Water with a filter Filters not only cost a fraction of the price of a lens but are also easier to clean B W protection filters can remain permanently in front of the lens as they are absolutely colorless highly transparent and extremely low reflective due to their hard MRC finish The optical information reaches the image sensor or film uninfluenced The filters have no exposure factor Protection factors play a particularly important role In digi tal photography Larger depth of field due to small sensors increases the influence of front lens soiling on image qual ity Particularly in zoom lenses with low light intensity fin gerprints have the effect of reducing sharpness considerably Frequent cleaning of the front lens however can not only cause scratching but also transport dirt particles or moisture on the edge of the mount into the inside of the lens system B W Protection Filter Clear This filter fulfils the desire of many photo graphers for pure lens protection without a filter effect Its only function is to keep dirt sand or splashes away from the front lens The extremely clear special glass with high transmission is MRC or MRC nano finished The hydrophobic coating reduces the adhesion of particles and wat
29. t contained in the data record Many of the most commonly used color and contrast corrections work by remov ing image information destructive image correction Such in some cases coarse repairs leave considerable gaps in the data record which are not yet recogniz able on the PC monitor but can become visible on the higher resolution print Safety through high tech production B W is the first filter manufacturer in the world to offer MRC Multi Resistant Coating This multi layer coating is vapor deposited in highly advanced vacuum coating plants It is extremely low reflec tive and highly resistant to scratching But above all its unique dirt and water repel lent surface makes cleaning the filters easier In this way filters can also perform a protective function for the front lens Reflection p 96 for 2 surfaces while n 1 52 400 nm 500 nm uncoated single coated MRC finished 600 nm 700 nm Top performance thanks to Multi Resistant Coating MRC A key criterion for an outstanding filter is the coating Quality begins in front of the lens and that is of course where the filter is placed A filter must not impair the performance of the optics MRC Multi Resistant Coating have a multicoating layer on both sides 7 1 on each which ensures maximum reflection reduction and thereby eliminates disruptive stray light In this way more brilliant colors and higher contrasts can be attaine
30. trum All the chromatic aber rations of a lens such as longitudinal and lateral chromatic aberrations are sig nificantly reduced or almost completely eliminated depending on the filter Light that was previously filtered is no longer available for aberrations Black and White Filters E 82 Accessories NEW FORMULA B W Adapter Rings If photo equipment is to include lenses with dif ferent filter thread diameters the B W adapter rings can adapt filters and supplementary lenses to different lens diameters This is less expensive than buying several lenses with the same filter type money that would be better invested in a larger selection of filters When buying filters first check the largest diameter required When there are three different diameters to cater for at the same time adapter rings can also be combined if necessary Increased thickness due to using several mounts can result in vignetting B W offers a wide range of adapter rings B W Photo Clear Microfiber Cleansing Cloth There is no better cleansing and care cloth for sen sitive optical equipment The B W Photo Clear is made from a high tech microfiber which is free of chemicals and lint and cleans gently but thoroughly It can be washed in an environmentally safe manner and used again and again without losing any of its proper ties an accessory of frequently underestimated importance for imaging performance Available in 17 x
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