K&F Concept 82mm Natual Night Filter Light Pollution Filter for Night Photography Sky/Star Astrophotography Optical Glass Double Sided MRC Coating Waterproof and Oil Resistant. ✿Material✿K&F Concept Natural Night Filters made of double side Nano-Coating use waterproof and scratch-resistance technology ,bring the high-quality definition, low-reflection and no Vignetting.
eBay