Home :: Accessories :: Collimators :: Bob's Knobs :: Bob's Knobs for Newtonian Telescopes :: General Newtonian Secondary

General Newtonian Secondary


Most mass-produced Newtonian telescopes from Celestron, GSO, Hardin Optical, Meade, Orion, Synta, and Zhumell use one of the secondary mirror configurations shown on this page. The photographs and descriptions below will help you determine which knobs to order.

There are no available products under this category.