- Altair 2" star diagonal mirror with a 90° viewing angle allows you to comfortably view objects at a high angle in the sky, producing an upright but mirror reversed image.
- An upgrade for the cheap diagonals included with some refractor telescopes.
- Fits telescopes with large 2" eyepiece adapters on the focuser (if in doubt please contact us).
- Includes 2x dust caps. High quality mirror metal housing. Barrel is threaded for standard 2" astro filters (M48x0.75mm).
- Includes removable 1.25" eyepiece adaptor with brass compression ring for use with smaller 1.25" eyepieces.