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Formatt Hitech 80C Color Conversion Filter (77mm)

BH #FO80C77 • MFR #BF 77-CTC80C
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Formatt Hitech 80C Color Conversion Filter (77mm)
Key Features
  • Balances Daylight Under Tungsten
  • Schott Glass
The Formatt 77mm 80C Color Conversion Filter is blue. It is used to balance daylight film under artificial, tungsten or standard (household) incandescent lighting.

What happens when you want to take a photo of your grandmother in her apartment and she's sitting next to an antique table illuminated by an old antique lamp? You'd like to capture the essence of her age but don't want to make her look too pasty. Your daylight film with an 80C filter will leave just enough yellow in the image to give grandma a flattering warmth.

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Formatt Hitech BF 77-CTC80C Overview

The Formatt 77mm 80C Color Conversion Filter is blue. It is used to balance daylight film under artificial, tungsten or standard (household) incandescent lighting.

What happens when you want to take a photo of your grandmother in her apartment and she's sitting next to an antique table illuminated by an old antique lamp? You'd like to capture the essence of her age but don't want to make her look too pasty. Your daylight film with an 80C filter will leave just enough yellow in the image to give grandma a flattering warmth.

This filter allows you to somewhat "balance", i.e. bring back, correct color tone to your images. There is some loss of film speed that may require the use of a tripod but, at least, your photos will demonstrate the proper tonality they so richly deserve.

80 Series Conversion Chart
80A increases color temperature from 3200-5500K (commonly used with 3200K lamps)
80B increases color temperature from 3400-5500K (commonly used with photoflood lamps)
80C increases color temperature from 3800-5500K (commonly used with flashbulbs)
80D increases color temperature from 4100-5500K (commonly used to remove extreme orange or red)
Absorbing Cell Technology
The secret to Formatt's consistency in filter design lies in its unique "Absorbing Cell Technology" (A.C.T.); this unique process allows color correct dyes to be applied to optically pure, wafer thin absorbing cells and offers a controllability that ensures the smoothest grad lines and consistent color across the whole filter surface.
This process is revolutionary compared with conventional filter dying techniques by eliminating the need to directly coat the glass surface itself. The repeatable performance gained through A.C.T. ensures that at any time you have to swap like filters for like filters in mid shoot, you can do so with confidence with no discernible differences in color or density.
Each filter is guaranteed flatness to a maximum 2-wave value and comes with an individual reading from a laser interferometer. Every filter is carefully verified with a densitometer and spectrophotometer to ensure consistent and accurate transmission, before leaving the factory - the result is an absolute purity of image that eliminates any unwanted colorcast caused by conventional greenish soda-lime glass.

Formatt Hitech BF 77-CTC80C Specs

Type
Color Conversion
Size
77mm
Grade
80C
Filter Factor
4 (+2 stop)
Multi-Coated
Not Applicable
Rotating
Not Applicable
Effect
Balances daylight film for use with most standard tungsten lighting, studio lighting and copy stand lighting
Application
Used to shoot daylight film under artificial (household) lighting conditions
Color Temperature
Increases color temperature from 3800-5500K (commonly used with flashbulbs)
Construction
Schott-Desag B270 Crown Optical Glass
Front Filter Thread Size
77mm
Front Lens Cap Size
77mm
Packaging Info
Package Weight
0.1 lb
Box Dimensions (LxWxH)
4.4 x 1.6 x 0.5"

Formatt Hitech BF 77-CTC80C Reviews

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