Suitable for models PL70, PL70r and PL80. Four rugged glass filter discs with a special coating, 1.5 mm thick, in four matte-finished polymer collars made of rugged polypropylene. Color filters can also be used in combination with the white signal cone. Functions: red to preserve night vision, blue for better detection of body fluids (blood, sweat, etc.), yellow for less glare in fog, green for game observation.
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