Misc 72mm KR12 (85) Color Conversion Glass Filter (Slim)

This B&W 72mm KR12 (85) Color Conversion Glass Filter (Slim) - What do you do when you must take some photos outdoors and all you have left is tungsten film? Using tungsten film in daylight will produce a bluish cast in the photograph. The 85 series of filters will "bring back", i.e. color balance the tones in your images. This reddish/brown filter is used to correct differences in color temperature between the recording medium (film/video) and the light source.

B&W slim filters are for wide-angle lenses and are 3mm thick. They do not have a front thread.