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The Tiffen 5 x 5" Combination 85B/ND 1.2 Filter blends both an amber color conversion 85B and a 1.2 neutral density filter. The ND filtration provides a 4-stop exposure reduction for darkening the entire image in order to photograph with a wider aperture or slower shutter speed than normally required. The 85B filtration covers the entire filter plane and converts the color temperature to 3200K for use with type B (tungsten) films.
This filter is made using ColorCore technology, a process that involves laminating the filter substrate between two pieces of optical glass, and grinding flat to a tolerance of 1/10,000th of an inch. This filter measures 5 x 5" / 127 x 127mm.
Combination of both an amber color conversion 85B and a neutral density filter.
1.2 ND filter darkens the image, allowing you to photograph with a longer shutter speed or wider aperture than normally required.
85B filter converts the color temperature to 3200K, allowing you to use type B tungsten-balanced film in daylight situations.