This 77mm Tiffen 85B ND Filter 77mm 2-Stopblends both an amber color conversion 85B and a 0.6 neutral density filter. The ND filtration provides a 2-stop exposure reduction for darkening the entire image in order to photograph with a wider aperture or slower shutter speed than normally required. The 85B filtration covers the entire filter plane and converts the color temperature to 3200K for use with type B (tungsten) film.

This filter is made using ColorCore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass, grinding flat to a tolerance of 1/10,000th of an inch, and then mounting to precision metal rings.

0.6 Optical Density    ColorCore Technology    Amber 85B and Neutral Density    Warming Filter to Decrease Color Temp    ND Filter to Increase Exposure Length

Combination of both an amber color conversion 85B and a neutral density filter.

0.6 ND filter darkens the image, allowing you to photograph with a longer shutter speed or wider aperture than normally required.

85B filter converts the color temperature to 3200K, allowing you to use type B tungsten-balanced film in daylight situations.

Related Questions and Answers

Q: 1. Does this filter work on a sony 70-200mm lens?

A: It depends which Sony 70-200 it is. If it is Sony FE 70-200mm f/2.8 GM OSS II Lens then Tiffen 77mm Variable Neutral Density Filter will work because that lens does accept 77mm filters.

Q: 2. Can anyone tell me what the dot markings represent in amount of stops of light being reduced? Is the min setting 2 stops immediately and what does each progressive dot on the scale represent in stops of light reduced? Are they fractions of stops or whole stops? (I assume 'max' equals 8 stops of light reduced) Thanks for any feedback in advance!

A: Justin... the dots on the filter ring are just reference points and do not relate to actual stop values. At the MIN setting you are at 2 stops, at the MAX setting you are at 8 stops. Between those two points there is no way to determine the exact stop value. If you need to know the exact stop value we also manufacture solid ND filters in a variety of stop values.

Q: 3. without front threads, what lens cap can I use this filter?

A: I suggest using one of the Op/Tech Hood Hats as a cover: http://bhpho.to/1w9ZAZT

Q: 4. Does the 52mm fit on my 18-55mm Nikon D5600 lens?

A: You can use the lens to filter size tool on the Tiffen website to determine this information: https://tiffen.com/pages/filter-collection

Q: 5. How many stops will this filter give me compared to the 58CP filter?"

A: This Tiffen 72mm Variable Neutral Density Filter can reduce exposure from between 2 stops to 8 stops; the Tiffen 58mm Circular Polarizing Filter will reduce exposure about 1.2 stops.

Q: 6. Normal 85b is reduced by 0.6 stops. This is normal 85b(0.6) + nd(0.3) product?? Or does the new technology mean that the 85b filter itself only reduces 0.3 stops?

A: No, the following filter blends both an amber color conversion 85B and a 0.3 neutral density filter.

Q: 7. Does it work for 18-35mm Sigma Lens ? Blackmagic6kg2?

A: Yes Tiffen 72mm Variable Neutral Density Filter is compatible with Sigma 18-35mm f/1.8 DC HSM Art Lens for Canon EF

Q: 8. Will this fit the Canon EF 50mm lens?

A: There are three different Canon lenses which match your description, each one takes a different size filter. Please visit the URL below and then click on the lens you have. Once on that page scroll down and click on SPECS. The filter thread size will be listed here.

Q: 9. how many stops total compensation does this require? .9nd +the 85

A: It is a 3 stop filter. You would need 3 stops of compensation. The 3 stop rating on the filter factors in the 85B filtering properties.

Q: 10. Whats the outer diameter for the 82mm VND?

A: Tiffen 82mm Variable Neutral Density Filter has a 98mm outer diameter.