B07P2CFXP7 K&F Concept 77mm Clear-Night Filter Multiple Layer Nano Coating Pollution Reduction for Night Sky/Star

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Nano Multi-Coated?educes Light Pollution for Crystal Clear Night Skies
Ultra Slim Optical Glass Filter
Coates on both sides,waterproof, oil resistant, scratch resistant,protacting your cmaera lens
No color cast,No vignetting on wide angle lenses
Frame made of alloy aduminium, The Border thickness is 0.15”