The Tiffen Series 9 81B Light Balancing Filter helps to decrease the color temperature by 300K in order to warm the image slightly in order to match the color quality of illumination. When using an 81B filter, you will be able to attain 3200K balance when the prevailing light source is 3500K. 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. It is compatible with Series 9 filter holders.

Warming Light Balancing Filter    Less 300K to Convert 3500 to 3200K    Compatible with Series 9 Filter Holder    ColorCore Technology

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

Subtracts 300K in order to attain 3200K color balance from 3500K illumination.

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

Related Questions and Answers

Q: 1. Do 4x5.6" filters fit into this?

A: Filters that are 4"wide will fit in the Tiffen Pro100 Series Camera Filter Holder with 77mm Adapter Ring.

Q: 2. Hi, is it possible to buy 2 of these, and screw on 1 or 2 more filter holders to a single unit? I'd like to be able to use up to 3 or 4 filters at once, and see they have a small screws on the front which seems if you remove would let you add more holders.

A: I see no way to do this with the Tiffen holder. However, Lee makes A 2x foundation kit with tandem adapter that looks like it solves the problem. https://www.bhphotovideo.com/c/product/352443-REG/Sigma_F309306_EM_140_DG_Macro_Ring.html

Q: 3. Can this fit on a Tokina Opera 16-28mm. I already have a 77mm tiffen nd filter. Will this be useful?

A: No but you can use this Fotodiox filter holder kit and use 145mm filters: https://bhpho.to/2YI0Md2

Q: 4. I just need the adapter gasket for a GS 430 Lexus

A: What is the filter thread size?

Q: 5. May I just buy the filter holder it self?? Or pair it up with a different size ring?

A: Yes you can, i bought filter holdet itself and paired it up with different rings

Q: 6. Has anyone tried using this holder with the Lee foundation Rings?

A: This Pro100 Filter Holder only works with specific Tiffen adapter rings.

Q: 7. I have a dead lipe battery. 2200 mAh 3s. How do I set my charger to maybe "bring it back to life"? Would Precharge Time work How to set

A: The Common Sense RC ACDC-10A 1-6S 100W 10A Multi-Chemistry Balancing Charger is not able to revive dead lipo batteries.

Q: 8. what neutral density filter can I use for a macro lens sp 90mm f/2.8di macro 1:1 by Tamron?

A: What is the filter thread diameter?

Q: 9. My Tiffen 4x4 filters are not held tightly enough and tend to slip...can the filter tray be tightened?

A: Yes, just tighten the screws on the holder

Q: 10. Are these a good solution for using with Rokinon cine lens (which don’t have a filter thread to screw anything into)? Trying to work out how I use fixed ND and polarizer filters with the Rokinons without a matte box (when using on a gimbal).

A: It entirely depends on the Rokinon lens you are speaking of. Virtually all the Rokinon cine lenses take filters (on exception would be the 14mm) whereas the Rokinon Xeens cannot and you would most likely use this: NiSi 114mm Shatter-Proof Protector Filter B&H # NIR114EXP Generally on a gimbal, a matte box is not used and only one maybe two screw on filters would be considered for obvious size and weight issues. In order that we may further assist you, please write telling us in more detail of what you wish to do. sales@bhphoto.com.