Bob's Knobs For GSO 12" Ritchey-Cretien Secondary
It’s easy . . . just grab a Bob's Knob collimation thumbscrew and turn. You can even do it while looking through the eyepiece on most scopes. And you'll never drop that pesky little Allen wrench or screwdriver into the grass again. Installation is a snap with the included instructions, and you can undo the modification at any time.
Notes 1: The factory dust cover will fit normally with Bob’s Knobs installed.
Manufacturer Product Number: AT12RC
- Additional Information
SKU BS-AT12RC Manufacturer Bob's Knobs Barrel Size Knob-Style Collimation Knobs For... TPO Telescopes For What Telescopes? RC
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- Bob's Knobs For GSO 12" Ritchey-Cretien Secondary
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