High quality optical Prism inside rather than a mirror which makes your image clear and sharp; more comfortable viewing orientation as you observe from above; filter thread for any 1.25inch filter; Accepts standard 1.25inch eyepieces
1.25inch 45-degree mirror star diagonal for refractor telescopes with 1.25inch connector "not recommended for reflectors"; protective coating on the mirror to ensure a long life; metal barrel - for secure seating in the focuser
This is a great diagonal for daytime terrestrial use and night time astronomy applications for telescopes or spotting scopes
Premium apochromatic Barlow lens with four lens design
Simple to increase your eyepiece's magnification; no chromatic aberration