Diagonal Prism Optical Prism inside rather than a mirror which makes your image clear and sharp
1.25 inch 45 degree mirror star diagonal for any telescope with 1.25 inch connector ;not suitable for Newtonians
More comfortable viewing orientation as you observe from above; filter thread for any 1.25 inch filter;. Accepts standard 1.25 inch eyepieces
1.25 inch Telescope Eyepiece set: Threaded for standard 1.25 inch astronomy filters telescopes and telescope accessories highly compatible; 6 mm 20 mm 32 mm three kind of pass through apertures
Fully-Multicoated Achromatic Design: Featuring a 4-element Plossl optical design with an approximate 50-degree AFOV, perfect for broad field lunar observations; medium sized star clusters; provide a wide range of cloudy nebulas and deep sky targets