H&Y K-Series Drop-in Night Filter Slot KPN07

* Star and night view filters that cut light pollution
* Double-sided multi-layer nano coating
* Water-repellent, dirt-repellent and scratch-resistant coating
* High color reproducibility
* Size: 95mm (fits up to 100mm K-Series Mount) * Only for 100mm K-Series Mount
* Absorbs sodium light which causes light pollution
* Multi-layer layer 9
* Reducing Light Pollution in the Night Sky for Astro or night city/landscape photography
* Double sided multi-layer nano coating
* Water/Oil Resistant
* Excellent color rendition
* Size: 95mm * For drop-in type K-Series Filter Holder 100mm * Absorbs Light Yellow Sodium Vapor
* Absorbs Light Yellow Mercury Vapors
* Absorbs Yellow Light from Low CRI LEDs
* 9 Layers Multi-Layer, Optical Glasses