Tiffen 67mm 81B Light Balancing Filter

BH #TI81B67 • MFR #6781B
Tiffen
Tiffen 67mm 81B Light Balancing Filter
Key Features
  • Warming Light Balancing Filter
  • Less 300K to Convert 3500 to 3200K
  • ColorCore Technology
The Tiffen 67mm 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.
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Tiffen 81B Overview

The Tiffen 67mm 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.

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.
UPC: 049383046151

Tiffen 81B Specs

Filter Type81B
Color Temperature3500 to 3200K
Filter Factor1.3x (0.4-Stop)
Circular Size67 mm Filter Thread
Front Accessory Thread / Bayonet67 mm
Filter MaterialGlass
Packaging Info
Package Weight0.15 lb
Box Dimensions (LxWxH)4.252 x 3.622 x 0.63"
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question

When screwing this filter onto a lens or other filters, it doesn't tighten, it just spins and spins. It unscrews fine, but it just won't tighten. Is this normal or is there a defect with the filter I received?
Asked by: Bill
It's hard to determine your issue without additional information. Can you please email us at [email protected]<a href= http://tiffen.com? target= _blank >tiffen.com?</a> Please provide a copy of your B&H receipt, a short video clip taken with a smartphone in which you demonstrate the issue and your name, shipping address and phone #. We would be happy to assist you with your issue as our filters come with a 10 year warranty.
Answered by: Tiffen Support Tiffen Expert
Date published: 2018-08-27
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