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Telescope accessories > Alignment accessories > Collimation screws > Bobs Knobs > Bobs Knobs Knobs for Newtonian 10” Primary
Product no.: 55356

Knobs for Newtonian 10” Primary

$ 37.90 incl. VAT, plus shipping costs
in stock
ready for shipping in 24 h + lead time

Product description

Bob's Knobs: Collimate your Schmidt-Cassegrain or Newton-Telescope without tools! 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.

These knobs will fit most Newtonian reflectors made by Guan Sheng Optical, including GSO, Hardin Optical, Meade Lightbridge, and Zhumell models. They have a screw diameter of 7 mm (collimation) and 6 mm (locking), and will usually fit your telescope if you select the knobs that match your scope’s aperture.

Primary collimation

  • Knobs: Black plastic, 30 mm (1-1/4”) diameter, 5-point fluted
  • Threads: Plated steel

Primary Lock

  • Knobs: Black plastic, 25 mm (1”) diameter, knurled
  • Threads: Stainless steel

Specifications

Capacity


Number (piece)
6
Bobs Knobs Knobs for Newtonian 10” Primary

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