Bobs Knobs

Bob's Knobs makes collimating your telescope easier, faster and safer. These high-quality adjustment screws replace the standard screws on your primary or secondary mirror, so you can adjust without a screwdriver and without the risk of scratching it.

The name “Bob's Knobs” has been a household name among amateur astronomers for many years. Each set is designed specifically for a particular telescope model, from Schmidt-Cassegrain to Newton, and is produced exactly to order. The knobs are stainless steel or aluminum, with a knurled grip for maximum control, even with gloves on.

In practice, that means: no more fumbling with screwdrivers in the dark, no more damaged corrector plates, and above all, a much more approachable way to perfectly align your telescope. Especially with reflectors and catadioptric systems, where collimation makes the difference between a sharp or blurry image, Bob's Knobs are a gamechanger.