Collimation Knobs

Simplify your collimation adjustments

Collimation knobs to replace the standard screws on your Newton telescope. Easier and more precise primary mirror adjustment thanks to ergonomic knobs.

Precise adjustment
Tool-free
Newton compatible
Collimation knobs for Newton telescope

Features

Precise and easy adjustment

Ergonomic knobs allowing fine adjustment of the primary mirror without tools

Resistant and durable

These screws withstand repeated handling

Universal compatibility

Fit most standard Newton telescopes

Simple installation

Directly replace your telescope's standard screws

Technical Specifications

Dimensions and design

Knob diameter 13mm
Length 45mm
Thread M4
Color Black
Unit weight 5g

Kit contents

Quantity 3 knobs
Compatibility Newton telescopes
Installation Direct replacement

Collimation Knobs

Collimation Knobs

15€

Set of 3 screws

  • 3 collimation knobs M4
  • 45mm length
  • Installation tips
Order

What our customers say

★★★★★

"I bought these 3 collimation knobs for my Orion XX14i Dobsonian. They replace my old steel screws which, although sold for this purpose, did not have rounded ends and ended up punching the back of my secondary mirror support. The ones from La 3ème dimension are nicely rounded, which makes the adjustment much smoother, without jerks and much more precise. Very satisfied, thank you!"

Jean-Marc C.

Collimation knobs - 02/28/2026

★★★★★

"I asked Raphael to design several Bahtinov masks in different sizes for me. The work done is impeccable, and done with seriousness and rigor. I am fully satisfied. I will not hesitate, in the future, to call on his expertise."

Salah M.

4 Bahtinov masks - 02/16/2026