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how does it work in black and white and negative (black bird -white bird?)? and very small (thumbnail size?) yellow on white is nor readable do you really have to shoe a black bird? or just give a hint of a black bird?
how does it work in black and white and negative (black bird -white bird?)? and very small (thumbnail size?) yellow on white is nor readable do you really have to shoe a black bird? or just give a hint of a black bird?