99% Reflective 2" Diagonal 17-5mm-eye-relief and double stars are revealed

and double stars are revealed in sharp

Twist-up eyecups for comfortable viewing with or without glasses

Constructed of opaque black nylon with excellent stretch

making both visual observation and astrophotography easier and more precise

With 10mm and 20mm eyepieces included

99% Reflective 2" Diagonal 17-5mm-eye-relief and double stars are revealedThe Explore Scientific 2 inch Dielectric Coated Diagonal Mirror comes complete with 1. 25 inch Adapter and dust covers. Solid construction and light weight, this first surface coated diagonal mirror reflects 99% of the light to help maintain the brightest possible image from your telescope. The insert barrel is a double taper, so it can be smoothly inserted or withdrawn from the focuser. The wide part of the taper prevents the diagonal from