The Tiffen 6x6" CC40R Red Filteris 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 CC40 is more dense than a CC30 filter and less dense than a CC50 filter, and requires a 0.6 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. I noticed the other models have intensity measured (i.e 1/2 stop, full stop etc) What strength of diffusion is this particular model?

A: This cloth will cut about 2 stops of light.

Q: 2. Is it a complete one piece material or there is a visible seam in the diffusion area?

A: It is seamless.

Q: 3. Is this a solid piece of fabric or are there seams running across the face of the diffuser?

A: There no seam, it's one piece of cloth.

Q: 4. whats the filter faction of this item?

A: This would have a filter factor of 8, so a 3 stop compensation would be required.

Q: 5. Will this work on a Yashica A tlr?

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

Q: 6. Nisha Bay 1 - correct filter for a Yashica Mat 66, right?

A: Yes this is the correct size.

Q: 7. 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.

Q: 8. Does this have elastic corners?

A: The Matthews Butterfly/Overhead Fabric - 6x6' - Lite Silent Gridcloth BH #MAF66SGCL uses grommets for fastening to a frame.

Q: 9. What size are the 4 mounting holes?

A: .44 X .75 in. SLOT [11.2 X 19.0]mm

Q: 10. Does this gridcloth fabric come with grommets installed on the edges?

A: Yes, the 8x8 Butterfly's all have webbing reinforced edges with grommets installed. Ties are also supplied.