The Tiffen 6 x 6" CC20R Red Filter is a color compensating (or color correction) filter for use when making color balance adjustments. It can be used to alter the color balance of a scene by placing in front of a light source or the lens of your camera. It can also be used to apply color corrections when used in the darkroom with an enlarger or to help pre-visualize color adjustments when viewing prints.

Red is the opposite of cyan and can be used to reduce cyan tones or casts within a scene or print. This red CC20 is more dense than a CC10 filter and less dense than a CC30 filter, and requires a 0.3 stop compensation for normal exposure results.

Tiffen filters are made using ColorCore technology; a process that involves laminating the filter substrate between 2 pieces of optical glass and grinding flat to a tolerance of 1/10,000th of an inch. This filter measures 6 x 6" / 152.4 x 152.4mm.

Color Compensating Filter    Achieve Proper Color Balance    Also for Printing and Viewing Use    ColorCore Technology

Red color compensating filter for use when making color balance adjustments.

Red is the opposite of cyan and is added to reduce cyan tones or color casts within a scene or print.

Related Questions and Answers

Q: 1. will this fit the hero?

A: Fits on my Hero 4

Q: 2. Will this fit Hero 4?

A: Yes, it is the same housing as the 3+

Q: 3. What does the '630" designation mean for B+W filters?

A: B+W does not describe what 630 means. It is only a model designation.

Q: 4. Nisha Bay 1 - correct filter for a Yashica Mat 66, right?

A: Yes this is the correct size.

Q: 5. Is this glass or plastic?

A: Needed to pull the filter out of the case. I believe it is plastic making it a slightly weigh slightly less than glass.

Q: 6. Will this fit hero3 dive housing?

A: It can be used with the Standard Housing for the HERO4 and HERO3+.

Q: 7. Can this be used with the Lee filter holders? Does this filter have the foam seal to prevent light leakage?

A: It is compatible with Lee filter holders that accepts 100mm wide filters that are 2mm thick. It does have a gasket to help prevent light leakage.

Q: 8. Will the Haida Red Diamond 100mm filters fit their M10-II filter holder?

A: Yes it is compatible with the M10-II filter holder.

Q: 9. how many f-stops do you need to adjust for using this filter? Also, what is the filter factor?

A: The B+W #630/091 Dark Red MRC Basic Filter has a 3 stop filter factor.

Q: 10. Is this filter equal to a 25A red?

A: It comes close, this filter is a bit lighter and has a bit more orange in it but for the most part it will do a similar job to the 25A.