Tiffen 7785B 77mm 85B Filter

An 85 decreases the color temperature from 5500-3400 degrees Kelvin

An 85A decreases the color temperature from 5500-3100 degrees Kelvin

An 85B decreases the color temperature from 5500-3200 degrees Kelvin

An 85C decreases the color temperature from 5500-3800 degrees Kelvin

Using tungsten film in daylight will Produce a bluish cast. The 85 Series will Produce natural colors when shooting with tungsten film outdoors. Sunlight, daylight, incandescent, fluorescent, and other artificial light sources all have color characteristics that vary significantly. Filters give you better images by adjusting for these light variations. Film and video are rated for a particular color temperature such as that of daylight or tungsten light. Filters are used to correct differences in color temperature between the recording medium and the light source.
Brand: Tiffen, Model: 7785B, Size: 77mm