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What is the purpose of this "tri-color" filter? I'm at a complete loss what this filter might be used for. : r/AskPhotography
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Hoya 62mm Tri-Color Filter Exc+ – West Yorkshire Cameras
Buy Lee Filters 3x3#58 Polyester Filter for Tricolor/Color Separation Work, Green Online at Low Price in India | Lee Filters Camera Reviews & Ratings - Amazon.in