Optec M117 To 3.5-inch DSI Adapter for 10-inch & 12-inch RC Telescopes
Optec M117 To 3.5″ DSI Adapter for 10″ & 12″ RC Telescopes
The Optec M117 is designed to enhance resolution by converting both the AT10RC and AT12RC’s threads to DSI 3.5x24tpi threads to form stronger spacer sets. Manufacturer Product Number: 19899
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