The Tiffen 127mm 81 Light Balancing Filter helps to decrease the color temperature by 100K in order to warm the image slightly in order to match the color quality of illumination. When using an 81 filter, you will be able to attain 3200K balance when the prevailing light source is 3300K. 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, grinding flat to a tolerance of 1/10,000th of an inch, and then mounting to precision metal rings.

Warming Light Balancing Filter    Less 100K to Convert 3300 to 3200K    ColorCore Technology

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

Subtracts 100K in order to attain 3200K color balance from 3300K illumination.

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

Related Questions and Answers

Q: 1. I keep reading issues about the touchscreen and the boot time - would these drawbacks prevent you from buying this again or does its functionality overcome its flaws?

A: Typically there aren't any issues with this meter.

Q: 2. Am i able to use the fujifilm model on my fujifilm xt3 & my canon slr 35mm analog camera?

A: While it's possible to use this A10 AirTTL-F Flash on cameras other than those from Fujifilm, it has not been tested to our knowledge. The results may vary.

Q: 3. Is there any option for an optical slave?

A: Yes, the AD100 Pro offers two optical slave modes: one that fires from a flash without a pre-flash option and one that fires from a flash with a pre-flash option.

Q: 4. Is the flash trigger included?

A: A flash trigger is not included, being that they are camera-dependent.

Q: 5. What is the size of the carrying bag?

A: The carrying case of the Godox AD100pro Pocket Flash is 8.6 x 6.6 x 3.9".

Q: 6. Will there be a unit compatible with Olympus in the near future?

A: We don't have an official information from Profoto if they will release a Profoto A10 AirTTL-S Studio Light for Olympus in future.

Q: 7. If you buy the 2-pack do you get double the hardware? i.e. 2 a GoPro mount, belt clip, two magnetic mounts, slip-on diffusion, and a basic cold shoe mounts?

A: Whatever is included in the box with a single light will be included with both lights in this 2 pack. https://bhpho.to/3tercNH

Q: 8. Will it work on an Olympus OM1?

A: Yes, the Godox RING48 Macro Ring LED Light will work on an Olympus OM1.

Q: 9. Does the 100 Pro have the magnetic round head? Meaning, does it work with the Godox AK-R1 modifier kit?

A: Yes, the Godox AD100 Pro can accept magnetic accessories like those in the Godox AK-R1 Kit.

Q: 10. does this meter trigger Yungnuo YN-E3-RT remotely?

A: No; the L-478D-U does not have any internal radio. There are other L-478 meters that do, but they are specifically for PocketWizard, Elinchrom or Phottix receivers.