Zone VI COLOR viewing filter. Made by Fred Picker and Zone VI company. Made in USA. This viewing filter indicates the higher contrast characteristics of color film so can see how colors will appear in your photos. Very useful tool for previsualizing the how the tones in the scene will be rendered in your color photographs. This COLOR viewing filter is the X-602 model in a rectangular format as you would get with a 35mm camera. This viewing filter is in Ex condition, and comes with the original neck strap, and pkg. from Zone VI. Hard to find item in great condition. Sells for $45. Free shipping in the US.