Code: 2459432 Sulfur-II (8 nm) line filter 36mm unmounted with anti-reflection coatings
36mm unmounted Sulfur-II CCD Line-Filter (8nm)
Baader S II CCD Narrowband-Filter, Ř 36 (2mm glass thickness)
Plane-optically polished with an accurate 1-4th wavefront error over the entire surface. Includes anti-reflection coatings designed to prevent halos and image artifacts. The ultra-hard ion beam deposition ensures the coatings will never degrade from use or normal cleaning.