The Tiffen 4 x 5.65" 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 and grinding flat to a tolerance of 1/10,000th of an inch. It measures 4 x 5.65" / 101.6 x 143.5mm.

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. auto focus too?

A: The Canon CN-E 30-105mm T2.8 L S Telephoto Cinema Zoom Lens with EF Mount is a cine lens and does not have motors and thus cannot auto focus.

Q: 2. What is the weight of this light fixture and yoke? I have seen varying answers online ranging from 16-25 lbs which is surprising considering the 600x weighs only 11.37 lbs.

A: According to Aputure, the LS300X weighs 16.1 lbs.

Q: 3. Can the power supply unit charge the batteries when plugged up?

A: Unfortunately, the power supply unit for the LS300X cannot charge the V-mount batteries when plugged to an AC outlet.

Q: 4. Can you use the Canon EF extender with this lens?

A: We are not aware of an EF Extender that will work with this lens.

Q: 5. How does this compare to the Aputure 600x?

A: The Nanlite Forza 500B II Bi-Color LED Monolight BH #NAFORZ500BII has a little less power but it does have a magenta shift control that the B&H # APLS600XPROV does not.

Q: 6. What are the best-recommended batteries to meet the Aputure aspects for Aputure Light Storm LS300X for both Wattage and Amperage?

A: Core SWX HyperCore NEO 150 V B&H # CONEO150SCK

Q: 7. Anyone used the EF version of this lens on a BMPCC 6K pro?

A: The Canon CN-E 30-105mm T2.8 L S Telephoto Cinema Zoom Lens with EF Mount is fully compatible with the Blackmagic Design Pocket Cinema Camera 6K Pro (Canon EF), BH #BL6KPKCAMP. We think it would be a great lens choice for run and gun work, or cinematic shooting.

Q: 8. If we mount these on the ceiling, can we use the Sidus Link phone app to turn these on and off? Thanks.

A: Yes, the Sidus Link app can still control the LS300X even when mounted into the ceiling.

Q: 9. Can the fans be turned off while operating the light?

A: The fans can not be turned off.

Q: 10. is the grid permanently attached to the barn door? or removable?

A: Removable, but i can be a little tricky at first.