Used Celestron Oxygen III Narrowband Filter - 2" AVX With a large 8" Newtonian

With a large 8" Newtonian reflector optical tube

Please refer to the diagram below to understand how ASI585MC/MM Air cameras match with various telescope image circles

25 in) Dovetail Compatibility CGE Mount Finderscope 9x50 Focal Length 2350 mm (93 in) Focal Length of Eyepiece 1

Built-in Wi-Fi enabling unparallel connectivity

This compact 17

Used Celestron Oxygen III Narrowband Filter - 2" AVX With a large 8" NewtonianThis is a 2" Celestron O III filter in excellent, clean condition. Comes in its original jewel box. The 2" OIII narrowband filter isolates the two doubly ionized oxygen lines (496 and 501 nm lines) Filter has ultra hard, vacuum deposited coating Eliminates un natural colored halos surrounding bright stars The 2" OIII narrowband filter isolates just the two doubly ionized oxygen lines (496 and 501 nm lines) emitted by planetary and emission nebulae,