The Tiffen 3x3" CC20R Red Filter for Photographyis 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 3 x 3" / 76.2 x 76.2mm.

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. Does this filter have threads on the front ring so that you can add another filter?

A: Yes.

Q: 2. What are the rings made of?

A: I would say light weight metal. Not 100% sure. Very nice filters. I have 6 of them.

Q: 3. Will this work on a Yashica A tlr?

A: Yes, the following unit adapts to Bay 1 and 32 mm filters

Q: 4. What is the difference between this lens filter & the Formatt Hitech Ultra version? [Formatt Hitech 77mm Firecrest Ultra ND 0.9 Filter (3-Stop)] Thanks.

A: The Ultra Firecrest series filters exhibit greater clarity and have lower reflectivity than the original Firecrest filters. Borrowing from the range of Firecrest cine filters, the Ultra series filters undergo a secondary lapping and polishing process after the initial polishing and bonding stage. This additional step helps to ensure flatness and consistency for improved image quality.

Q: 5. Nisha Bay 1 - correct filter for a Yashica Mat 66, right?

A: Yes this is the correct size.

Q: 6. Does this filter fit Cokin P holder?

A: Unfortunately no. The Formatt Hitech 85 x 85mm Firecrest ND 0.9 Filter B&H # FOFCND.9CP MFR # FC85ND0.9, does not fit the Cokin P Holder.

Q: 7. Hi, does the Smart AVI need a PC to run alongside it? Or is it self contained?

A: This system is basically a PC in a black box and does not require connection to another computer. It will operate and stand alone.

Q: 8. Will this fit a Yashica mat 124 G?

A: Information on that model reads that it uses a Bay 1 not a bay 2 filter. So, the bay 1 version is, https://bhpho.to/3hj1yV7

Q: 9. Will this filter fit inside the Wine Country Camera 150 mm x 150 mm filter vault? I see the Formatt Hitech is 4 mm thick. I think the Wine Country Blackstone filters are 2mm thick but I can find no information to verify this.

A: The Wine Country filter holders have 2mm slots, so that filter is not compatible.

Q: 10. I'm new to square filter systems. Being 85mm is this compatible with the Cokin P holder?

A: Yes, the Formatt Hitech 85 x 85mm Firecrest ND 4.8 Filter would be compatible for use with the Cokin P-series filter holder.