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Flexaret MEOPTA N2 B36 Gray Filter Czechoslovakia Genuine Accessories Bayonet
B36 N2 – VERY RARE DARK GRAY FILTER. It is used excessive illumination.The filter allows to pass 50% of light.For intercepting a part of light, e.g. when using high sensitive films, at too high illumination of photographed object, at undesirable sharpness depth produced by stopping down of the lens etc.
