Collimation Tools - Sky & Telescope - Sky & Telescope

Three tools are commonly used to collimate Newtonian reflectors.

Discovery Sky T60 Telescope with book

eVscope collimation tool by PetriT

Make a collimation tool for your telescope

How to collimate a Newtonian telescope - BBC Sky at Night Magazine

HoTech 1.25 SCA Laser Collimator - Crosshair

How To Tell If Telescope Needs Collimation (3 Easy Tips)

Astro-Tech 1.25/2 laser collimator

HoTech Advanced CT Laser Collimator - Rother Valley Optics Ltd

RVO Cheshire Collimating Eyepiece - Rother Valley Optics Ltd