The Tiffen 4x5" 80B Color Conversion Filterhelps to increase the color temperature from 3400 to 5500K, allowing the use of daylight-balanced film in tungsten-lit conditions. The cooling effect of this filter requires a 1.6-stop increase in exposure for normal results.

This filter is 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. It measures 4 x 5" / 101.6 x 127mm.

Cooling Color Conversion Filter    3400 to 5500K Color Temp Increase    ColorCore Technology

Color conversion filter increases color temperature and provides a cooling effect.

Converts 3400 to 5500K for using daylight-balanced film in tungsten-lit conditions.

Filter factor of 3 requires a 1.6-stop increase in exposure.

Related Questions and Answers

Q: 1. Will this work in a Tilta-MBT12?

A: No, the ARRI LMB 4x5 Rotatable Filter Stage is made specifically for the ARRI LMB 4x5 Matte-box.

Q: 2. Will it fit Nikon 3300.?

A: This filter will fit any lens with 37mm threads

Q: 3. Other size available?

A: Thanks for your interest in Tiffen filters. Please go to the search tool on the B&H homepage and enter Tiffen Antique Suede and hit enter. Every size antique suede filter that Tiffen makes will appear in the search results.https://a href= http://www.bhphotovideo.com/c/search?Ntt=tiffen+antique+suede&N=0&InitialSearch=yes&sts=ma&typedValue=&Top+Nav-Search= target= _blank www.bhphotovideo.com/c/search?Ntt=tiffen+antique+suede&N=0&InitialSearch=yes&sts=ma&typedValue=&Top+Nav-Search=/a

Q: 4. What is the difference between this and the Heliopan KR3 81C (705516)?

A: 705516 is a mistake listed on our website. It is an 81EF filter, not 81C.

Q: 5. How many stops of light does it take?

A: The following system offers 6 2/3-stops of light loss.

Q: 6. Good days. I want to know if I can pay with french credit card, I am French, to send my order(request) to a person in Orlando?

A: Please contact B&H directly for assistance

Q: 7. Will this melt if I put it next to my speed ring on an Arri 1k open face?

A: These gels are heat resistant but will eventually fade and distort. I've only seen them melt when in direct contact (or very near proximity) with a halogen lamp. I think you'll be ok for awhile if the gel is on the outside of a lensed speed ring. Maybe check for sure with Rosco or Lee.

Q: 8. Filter size?

A: The Tiffen Series 9 1 Chocolate Solid Color Filter is a Series 9 size filter. This is a link for ones tha have standard filter threads, https://bhpho.to/3vZFC8U

Q: 9. Can this be used with hot lights without it melting/deforming too quickly?

A: The Rosco # 3208 1/4 Blue CTB Color Conversion Gel Filter (20 x 24" Sheet) is heat resistant however keep in mind that any gel gets deformed after a full day of work, especially if placed close to the source.

Q: 10. will this fit with Nikon d3200 18-55mm lens?

A: You will actually need filters with 52mm threads for the Nikon 18-55mm lens.