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Bob's Knobs

Bob's Knobs

Collimate your Schmidt-Cassegrain, Maksutov-Cassegrain, or Mewlon telescope without tools!  It’s easy with Bob's Knobs.  You can even perform a collimation 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.

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