This Orion telescope eyepiece adapter lets you use an eyepiece with a barrel diameter that is different from that of your telescope's focuser or star diagonal. Thumbscrew holds the eyepiece securely. Made of anodized aluminum. Use 1.25" telescope eyepieces in a .965" focuser or diagonal.
Requires 20mm additional back travel to achieve focus. May not be compatible with all telescopes.
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