Color gel

Film filters are made of various plastics or gelatin. Usual dimensions are 75x75 mm and 100x100 mm.

Film filters are in great variety, among other things as color filters for black and white photography (red, orange, etc. ), as a color correction filter (for fine -level matching of color temperature) and Infrared filters are available. They are relatively inexpensive and with good film filters no influence on the imaging quality is in practice to detect.

To use it on the camera, you need a special color filter holder which is to hold the film as flat as possible. In a compendium of a slit is usually been recessed, which serves to receive one or more film filter.

To be the best ( and most sensitive ) are the Kodak Wratten filter, made ​​from gelatin, which are admixed with the respective dyes, wherein the dyes do not always remain stable when exposed to light for long time.

• Optical filter
• Photography Equipment