Telescope Adaptation: 31.7 mm; 1.25 inch male barrel
All metal construction and anodizing aluminium process; resistant for long time use
Allows you to use 0.965 inch eyepieces in any 1.25 inch telescope focuser; star diagonal or holder
An object that is accurately centred in the eyepiece will be simultaneously centred in the field of view of camera; You no longer have to worry about whether the object is correctly positioned on the chip; you know it will be
For precise focusing: In astrophotography if you want to take successful astronomy photographs; The Alstar flip mirror makes it very simple to find both the exact focus point and also the correct positioning for your astronomy photographs