The Tiffen 3 x 3" 80B Color Conversion Filter helps 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 3 x 3" / 76.2 x 76.2mm.

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. Just received my jobu jr3 and Desmond dpl-115 plate. The clamp on jobu bottoms out on itself and does not tighten on the plate. The V grooves on the plate are too big. Which brand plate will fix this problem.

A: For this inquiry, please e-mail us directly to prophoto@bhphotovideo.com along with the lens that you own for reference. Thank you.

Q: 2. Once purchased, is it possible to switch lens mounts? I'd like to be able to move between PL and Canon RF

A: Yes, but there are no RF lens mount options, only Sony E, Canon EF, Nikon F, and PL.

Q: 3. Has anyone tried using an extender / doubler with this lens (EF-mount)? The Canon EF 2X III does not work (physical restraints).

A: We are not aware of a 2x Extender that is compatible with this lens.

Q: 4. I will be using this gimbal with a Sigma 150-600 tele lens. Do I need to get an extra long plate?

A: Yes, I did 4 from B&H, works great!

Q: 5. How many degrees is the focus throw?

A: 300 degrees

Q: 6. Is the arri speed booster is compatible with the Zeiss lwz 3 21-200 t/2.9-3.9 PL mount lens,,,? , What is the circle of image produce by this,28.5 mm, super 35 or31 mm at the wide end

A: this is a S35 Zoom it will not cover any sensors larger than s35mm. The circle of illumination is designed around s35 and nothing larger

Q: 7. It says that you need an Arca-Swiss plate to use with it. I will be using an Oben ac-1410 tripod. Can you refer me to what plate would be best to order?

A: Depending on the telephoto lens that you are using, different lengths of Arca-Swiss plates will be appropriate to attach. The following chart will show you which Wimberly (another maker of gimbal heads that use Arca-Swiss releases) plate will support your lens best. Just type in the model number of the specific plate into our search bar. (example: P10 plate)http://bhpho.to/1aJndNaorClick the link in the description of this product:B&H # WITHQRQ ? Mfr # WH-200

Q: 8. Is this lens par-focal?

A: You probably need shims to custom adjust this depending on what camera you are using. Factory lens put on a camera is completely NOT parafocal for me.

Q: 9. Is this compatible with sony camera 7M3 or FS5?

A: No, this link would be for the Sony E mount version: https://bhpho.to/3rzfYDA

Q: 10. It says compatible with most Arca Swiss plates. My Olympus 300 PRO has the Arca Swiss dovetail machined in the lens collar foot. Is this gimbal clamp compatible with my lens?

A: Yes the Jobu clamp on the gimbal is Arca compatible.