The non-rotating Tiffen 86mm 85B Linear Polarizer Filter combines both an 85B color conversion filter with a linear polarizing filter to blend the effects of both filter types into a single, convenient solution.
The 85B color conversion aspect of the filter provides a warming effect and decreases the color temperature from 5500K to 3200K, allowing the use of tungsten balanced film in daylight conditions.
The linear polarizing aspect of the filter helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface. This results in a noticeable increase in the saturation of skies and foliage, as well as clearer imagery when photographing in hazy conditions. A linear polarizer differs from a circular polarizer in that it does not supports use of a camera's autofocus or auto exposure functions; it is best suited for use with manual cameras, such as view cameras, that are not dependent on internal mechanisms to determine focus or metering settings.
There is a total filter factor of about 6x, requiring an increase of 2.6 stops for normal exposure. Tiffen filters are 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. The non-rotating design of this filter is best-suited for use with lens hoods, adapters, or other rings for rotational control over the polarizing substrate.
Linear polarizer and 85B amber color conversion filter combination.
Total filter factor of approximately 6x requires 2.6 stops of additional exposure for normal results.
Warming 85B color conversion filter decreases color temperature from 5500K to 3200K for using tungsten-balanced film in daylight conditions.
Polarizer helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface.
Clears up haze in distant landscapes and provides more saturated, vivid colors.
Strongest polarizing effect when used at a 90° angle from the sun.
Non-rotating design is best-suited to use with lens hoods or adapter rings in order to best control the polarizing effect of the filter.
In the Box
Tiffen 86mm 85B Linear Polarizer Filter (Non-Rotating)
Limited 10-Year Warranty
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Amber color conversion and linear polarizer combination
Approx. 6 (2.6 stops)
Polarizer eliminates reflections and haze and improves color and tonal saturation 85B decreases color temperature