1.25 inch 90 degree mirror star diagonal for any telescope with 1.25 inch connector but 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;
Useful for refractor and Cassegrain telescopes but not recommended for reflectors;
1.25 inch plossl eyepiece set: 6mm 12.5mm 20mm; gives the widest viewing field along with extra sharpness and long eye relief
4-element plossl design has a approx 50 degree AFOV; perfect for broad-field lunar observations and medium-sized star clusters and a wide range of cloudy nebulas and deep-sky targetsv