useful links

Filter sizes for newest DSLR and 4/3 camera lenses

  Fisheye protectors / ND filters

     Guide to thread pitches used throughout the site

   E, ES  European standard male threads 0.75mm...E, ES after the size

        E  European fine male threads 0.5mm...E before the size

        F  US & Japanese fine male threads 0.5mm...F after the size

        C  Coarse male threads 1.0mm

        M  medium male threads 0.75mm... standard threads today

       FR  fine (0.5)mm female

       MR  med (0.75)mm female

       nft  slim > no front threads

       SO  slip-on (over lens barrel)

       SS  set screw (tightens over lens barrel)


     Guide to condition of filters for sale

      *new filters

        new - in current or recent packaging.

        NOS - new old stock in original packaging 10+ years

        NIB n/o - vintage older filters new in original packaging 20+ years.

        NIC - in current or recent case - out of the box

        NIC n/o - new/old in original leather or plastic case

        n/o - new/old out of its packaging

        ( NOS, NIB n/o B+W and Heliopan filters are vintage non-slim “E Series”)

       *pre-owned filters

        “looks new” may be new (?) - in or out of original packaging

        “clean” or “very clean” - used, near-mint condition - no flaws.

         vg - good glass, some wear on frame

         cs - with original leather or plastic case

         unmtd - unmounted glass

   Clearance page  Various Japan brands made for many independent importers during the 70‘s, 80’s, 90’s, 00‘s mostly made by Marumi Optical using quality standards: coating, dyed glass and sturdy frames. All listed are in NOS, “very clean” or “like new” condition...Any received with nicks on the frame, scratches, ghosting, worn coatings, hazing from deteriorating foam packaging... are discarded.

Brands include: Asanuma, Camrex, Coastar, CPC Phase 2, Gemko, HCE, Kalcor, Kalt, Kenko, Milo, Osawa, Prinz, PRO, Promaster, Quantaray, Rokunar, Samigon, Toshiba, Toyo Optics, Spiratone, Vivitar...and others


About coatings and construction

        Hoya: black painted aluminum

        MC - multi-coated;  SMC super multi-coated;  SC - single coated

        Hoya HMC - “Hoya multicoated”

        Hoya Evo anti-static coatings repel dust, staying clean longer.

About B+W filters

        B+W, Heliopan and other German filters: black painted brass.

       * We feature only German made items for quality assurance

        B+W and Heliopan filters are SC “single coated” on both sides

        B+W “MRC” > “multi-resistant coating” water repellent......

                    “nano” - dust repellent         

        Heliopan “SH-PMC” > “super-hard premium multi-coating”

about frame thickness

B+W E and ES series...vintage non-slim 5mm thickness frames up to 62mm... 6mm thickness frames 67 > 82mm

desired by collectors of vintage 50mm and above focal length lenses

B+W F-Pro > 4mm thickness frames

B+W XS-Pro > 3mm thickness frames...newest series for wide-angle

Heliopan slim > 4mm thickness frames

Heliopan non-slim > 5mm thickness frames


  Linear Polarizers are for new mirrorless and older manually operated cameras

  Circular Polarizers recommended for AF and Digital cameras


          Guide to Neutral Density filters

         ND Wratten #       Filter factor (ff)         Increase exposure stops

              0.1                         1.25                          1/3

              0.2                         1.50                          2/3

              0.3                         2x                               1          

              0.4                         2.5                           1-1/3

              0.5                         3                              1-2/3

              0.6                         4x                               2          

              0.7                         5                              2-1/3

              0.8                         6                              2-2/3

              0.9                         8x                               3          

              1.0                         10                            3-1/3

              1.2                         16                               4

              1.5                         32                               5

              1.8                         64                               6

              2.0                         100                           6-2/3

              2.4                                                            8

              2.7                                                            9    

              3.0                         1000                           10                

              4.0                         10k                           13-1/3

Neutral Density filters reduce the amount of light passing through the camera                 lens without changing the color of the scene.

They are especially useful in bright light conditions to help prevent overexposure. 

They also allow proper exposure at a wider lens opening for reduced depth-of-field to highlight a key subject by making the foreground and/or background out of focus.


           Basics for digital or film

                                                        UV Haze Haze reduction, lens protection  

                     Haze 2A cloudy, overcast haze reduction                        

              UV-16  daylight w/ flash; reduces haze and bluish cast

                    UV-17  greater haze reduction in aerial, mountain, marine,

                                      sky scenes; portraiture in shady areas...Y1

Skylight 1A, 1B - B+W KR1.5 - Nikon L1A, L1B

                          UV - pinkish cast for blue haze

        reduction for color

                        fine to use with black & white

                Filter Factor 1 - 0 stops


Linear / Circular Polarizer

      General use in outdoor photography -

                produces deeper skies and alters reflections.

Circular Polarizer - autofocus

Linear Polarizer - manual - film - mirrorless

Filter Factor 3-4...1-2/3 - 2 stops

Enhancing Filter - Hoya Intensifier

  Intensifies the yellow, orange, red spectrum while not   

affecting other colors, use with Polarizer

to intensify blue skies. Enhances faded fabrics,

fall foliage and landscape.

                                 Filter Factor 1.4 - 1/2 stop

                     I believe this video was shot with this filter:


      filters for black and white photography

General rule:

filters lighten their own color and darken their opposite



Kodak wratten/Tiffen Yellow 5 - Y1 - Nikon Y44

Light yellow filter for mild contrast...

      high-altitude UV 2A, 2C, UV-17

             Filter Factor 1.4 - 1/2 stop

Kodak wratten/Tiffen Yellow 8 - Y2 - B+W 022 -

Hoya K2 - Nikon Y48
          This medium yellow filter offers the most correct tonal 

range contrast for clouds against blue skies...

                                  Filter Factor 2 - 1 stop


Kodak wratten/Tiffen Yellow 12 - Nikon Y52
Cuts haze in aerial work; used with color infrared;

more contrast than yellow 8

Filter Factor 2.2 - 1 stop

Kodak wratten/Tiffen Yellow 15 - B+W 023

              Enhances landscapes, marine scenes and aerial photography with more dramatic effects than yellow 8 ...

Filter Factor 2.5 - 1-1/3 stop                      

Kodak wratten/Tiffen Orange 16 - B+W 040 - Hoya G

More dramatic effect than Yellow 15...

Filter Factor 2.5 - 1-1/3 stop

Kodak wratten/Tiffen Orange 21 - B+W 041 -

O2 - Nikon 056

Absorbs blue and blue-greens.

Blue skies darken with dramatic cloud contrasts.

Foliage blackens.

Filter Factor 7 - 2-2/3 stops

Kodak wratten/Tiffen Red 23A

Light red producing contrast effects that darken skies,

water, rock formations and architecture...

Filter Factor 6 - 2-1/3 stops

Kodak wratten/Tiffen Red 25A - B+W 090 - Nikon R60

Dramatic sky effects and cloud contrast.

Useful with Infrared films 
Filter Factor 8 - 3 stops

Kodak wratten/Tiffen Red 29 - B+W 091  Kodak F

Dramatic sky effects and cloud contrast. Useful with Infrared films. Deeper effect than 25 Red.  Tri-color separation

Filter Factor 16 - 4-1/3 stops

Kodak wratten/Tiffen Yellow-Green 13 - Hoya XO - B+W 060

Used with outdoor portraiture for good skintones

when landscape is important. Enhances highlites in foliage,

grass and trees. Same sky contrast as yellows.

Filter Factor 2.5 - 1-1/2 stop

Kodak wratten/Tiffen Green 11 - B+W 061 - Hoya X1

Used with outdoor or studio portraiture for rich skintones;

Enhances shadows and highlites in foliage, grass and trees...

Filter Factor 4 - 2 stops

Kodak wratten/Tiffen Green 58, 61

Dramatically lightens and enhances shadows and highlites in foliage, grass and trees.  Tri-color separation

Filter Factor 4 - 2 stops

Kodak wratten/Tiffen Cyan  Blue 38 - B+W 080, 081

Minimizes contrast; Bleaches daytime skies.

Filter Factor 1.5 - 2/3 stop

Kodak wratten/Tiffen Blue 47, 47B  Kodak C5

Accentuates fog; minimizes contrast giving shots a

wintery effect  Tri-color separation

Filter Factor 4-1/2 - 2-1/3 stops

Infrared 89B - B+W 092 - Hoya R72
  Infrared 87 - B+W 093 - Hoya RM90


                     Intensifiers    for digital or film



     warming filters for digital or film

Tiffen 812   -  Tiffen FX Warm

Absorbs bluish haze in scenics; Adds warmth to skintones, similar to a dense skylight...81B + Coral

Filter Factor 1.5 - 2/3 stop


Converts Tungsten 3200K Type B film to 3400K w/ indoor lighting

Warms up scenes and portraiture on overcast days w/ Daylight film... Filter Factor...1.4 - 1/2 stop


Used with outdoor portraiture for good skintones when landscape is important. Stronger effect than 81A

Filter Factor 1.4 - 1/2 stop

81C - B+W / Heliopan KR3

Same as 81B but has increased effect

Filter Factor 1.5 - 2/3 stop


Same as 81C but has increased effect

Filter Factor 2.0 - 1.0 stop

color correction / color balance


80A - B+W KB15 - Nikon B15

Balances daylight film for use with most standard  household tungsten lighting or studio lighting...converts 3200K to 5500K....Filter Factor 2.4 - 1-1/3 stops

80B - B+W KB12 - Nikon B12

Balances daylight film for use with most standard  photo flood lamps and on-camera flash.

converts 3400K to 5500K...Filter Factor 2 - 1 stop

80C - B+W KB6

Balances daylight film for use with most high intensity  photo flood lamps and on-camera flash....Filter Factor 1.9 - 1 stop

82A - Heliopan B1.5 - B+W KB1.5

Reduces warmth during early morning and late afternoon while maintainig natural skintones.

Filter Factor 1.3 - 1/3 stop


82B - Heliopan B3 - B+W KB3

Same as 82A but has increased effect.

Filter Factor 1.4 - 1/2 stop

82C...Filter Factor 1.5 - 2/3 stop

Tungsten to Daylight


Creative strong warming filter. Type-A lighter - Cine-still Tungsten

Filter Factor 2 - 1 stop


85A - Heliopan R12

Creative strong warming filter deeper than 85.

Tungsten Type A film - Cine-still Tungsten

Filter Factor 2 - 1 stop

85B - Heliopan R15 - Hoya W12

Balances Type B indoor film for outside - Cine-still Tungsten

Filter Factor 2.1 - 1 stop


Creative strong warming filter. Balances Type B indoor film for outside like 85B but slightly cooler - Cine-still Tungsten

Filter Factor 2 - 1 stop


The FL series of filters alone does not always guarantee 100% correct color balance when shooting under fluorescent lighting. They are general purpose filters intended for moderate correction and will not, by themselves, necessarily provide perfect color rendition.

FL-D daylight

Filter Factor 2 - 1 stop
FL-D Fluorescent filter is used when you wish to correct for the greenish tone that appears when shooting daylight film under general purpose fluorescent lighting.


Balances Type B Tungsten film to indoor fluorescents

Filter Factor 2 - 1 stop


Balances daylight film to tungsten corrected or daylight simulated fluorescents.
Filter Factor 2 - 1 stop

CC 30 Magenta

General fluorescent correction with indeterminate ambient fluorescent lighting.

Guide to Multi-Image Prisms

     f i l t e r f i n d .n e t