The Tiffen 49mm 85B Color Conversion Filter helps to decrease the color temperature from 5500 to 3200K, allowing the use of tungsten-balanced film in daylight conditions. The warming effect of this filter requires a 0.6-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, grinding flat to a tolerance of 1/10,000th of an inch, and then mounting to precision metal rings.

Warming Color Conversion Filter    5500 to 3200K Color Temp Decrease    ColorCore Technology

Color conversion filter decreases color temperature and provides a warming effect.

Converts 5500 to 3200K for using tungsten-balanced film in daylight conditions.

Filter factor of 1.6 requires a 0.6-stop increase in exposure.

Related Questions and Answers

Q: 1. Do you know if this lens will cover 6k in Super-35?

A: yes this lens will resolve the necessary resolution as long as the sensor size is the pre requisite s35 sensor area that the lens image circle covers

Q: 2. Does this converter give clean results when converting from 1080p 60fps to 1080p 30fps? Any visible jittering or lag?

A: Its super clean

Q: 3. Do you guys carry the metric version?

A: we sell the metric version but it is a special order item

Q: 4. Can I use it with L-Mount-Cameras like Panasonic S1?

A: Only with an adapter from M-mount to L-mount, of which there are many options, such as this one (https://bhpho.to/3dldqBR) or this one (https://bhpho.to/3lDEnUn).

Q: 5. Does this convert 4k signal to a 1080p? I have a external monitor that output 4k and i need to send it to an 1080p Atem

A: We're afraid not. This product does not offer 4K conversions, in either direction.

Q: 6. Can this be used with a Leica M4? I don't see it listed under "Compatibility."

A: Yes, the Voigtlander Color-Skopar 35mm f/2.5 P II is a Leica-M mount lens and will work with the Leica M4.

Q: 7. Does this work with the Canon EF 2X III Extender?

A: no the Canon PL-Mount CN-E 30-105mm f/2.8 L will NOT work with the EF 2x extender

Q: 8. Does this lens support the DPAF focus guide as the CN-E Primes do?

A: Yes, the Canon CN-E 30-105mm T2.8 L S Telephoto Cinema Zoom Lens with EF Mount supports the Canon DPAF focus guide.

Q: 9. i have an old Sony HDR-FX1 that works best on s-video output. will this work when connecting to a BMD Studio HD?

A: It will not as this device does not have an S-Video connection.

Q: 10. When was this VM mount version first made?

A: The PII version of this lens came out in 2004. if you go to the Camera Quest site which specializes in Voigtlander you can learn more about it. I enjoy it, it is small and gives quite good images. I also had owned a 35 1.7 Ultron. it is a much newer lens design that is much more technically corrected, but in my opinon does not give as contrasty images. I sold it.I use my 35 CS on both my Sony digital and Leica film cameras.