K-series HD MRC Star Keeper 100x100mm

* Reduces Light Pollution in Night Sky for Astro or city/landscape night photography
* Double sides multi-layer nano coating
* Water/Oil resistant
* Excellent colour rendition
* Size: 100×100mm
* For 100mm K-Series Filter Holder or adapted holders from other brands
* Absorbs Yellow Sodium-Vapor Light
* Absorbs Yellow Mercury-Vapor Light
* Absorbs Yellow Light from Low CRI LED’s
* 9-Layer Multi-Coating, Optical Glass
* Quick Release Magnetic Filter Frame fitted as standard
* Magnetically Mounts on Holder