National Photocolor produced these camera in the 1940s and were pricey - about $485US. They were designed to make three color seperation negatives through the red green and blue filters with "one shot". They came in three sizes 5x7, 3 1/4 x 4 1/4 (quater plate) and 2 1/4 x 31/4. They were recommened to be used with glass plates for the best registration of the negatives although they also used film packs and sheet film. The film holders for glass plates are very precise and were supplied as a set of three and manufactured to ensure they were matched for registration. The 5x7 was considered a studio camera while the other two were for hand operation since they were light - 7lbs for the 3x4. The 1/4 plate model came in two models - one balanced for tungsten light and one for daylight depending on the pellicle mirrors in the camera. The camera may or may not have a parallax correcting coupled rangefinder depending on the model.
The national camera?
in Classic Manual Film Cameras
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