The Tiffen 4.5" Round 81C Light Balancing Filterhelps to decrease the color temperature by 400K in order to warm the image slightly in order to match the color quality of illumination. When using an 81C filter, you will be able to attain 3200K balance when the prevailing light source is 3600K. The warming effect of this filter requires a 0.3-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.

Warming Light Balancing Filter    Less 400K to Convert 3600 to 3200K    ColorCore Technology

Light balancing filter decreases color temperature and provides a warming effect.

Subtracts 400K in order to attain 3200K color balance from 3600K illumination.

Filter factor of 1.3 requires a 0.3-stop increase in exposure.

Related Questions and Answers

Q: 1. Can this light be attached to the camera and sync'd for flash photography?

A: The Godox Round Mini RGB LED Magnetic Light (Silver) BH #GOR1SLV can not be made to sync with a camera for flash.

Q: 2. How does this item work with iPhones?

A: The Godox Round Mini RGB LED Magnetic Light works independently from an iPhone. All controls are on the light itself.

Q: 3. What is the diameter of the base? Is it heavy and stable?

A: It's about 14 inches and it is fairly heavy. I use this to mount a projector with a projector mount. It has been working very well for over a year now.

Q: 4. The B&H description says "The Prizmo Jupiter18 ...also has a battery plate for optional V-mount batteries that will give you a runtime of about 1.3 hours at 100% power." I've seen video reviews of this unit; Fotodiox appears to handicap the Jup 18 battery run output to 80% output, so is "100% power" actually true? Was there a firmeware update?

A: Some batteries have better ratings than others, so it can anywhere from 80-100% depending on the quality of the battery.

Q: 5. Do the extra battery NPF-770 very heavy that it makes these off balanced?

A: This light is compatible with NP-F770 batteries as well as the NP-F750 batteries (same weight and size) that Viltrox recommends, and as such it should balance just fine.

Q: 6. Can this be operated using USB power? If not, what is the voltage range on which this will be operated?

A: Yes. The following unit is powered up via usb cable.

Q: 7. Is the battery included?

A: The battery and charger are not included. Watson NP-F770 Battery Kit with Compact AC/DC Charger - B&H # WANPF770CK: https://bhpho.to/313RdAX

Q: 8. Is this product compatible with the Godox AK-R1 Accessories Kit?

A: Yes, the Godox Round Mini RGB LED Magnetic Light is compatible for use with the Godox AK-R1 Accessory Kit.

Q: 9. Would I be able to attach this to an Aputure MC light?

A: The DMG Lumiere Round DOT Diffuser for DASH LED Light is made specifically for the DASH LED Light. It will not fit onto an Aputure MC light.

Q: 10. What are the highest and lowest height of the phone above the table when you adjust the stand?

A: The highest that the stand can go is 33" with about 3 inches more give or take on the gooseneck that is attached to the phone clip.