Are Laser Collimators Worth It?

In my opinion, laser collimators are worth it if you're going to invest in getting a half decent one, and if you're not a beginner or a novice in astronomy. You need a decent quality laser collimator for it to be effective, otherwise you're just going to be wasting your cash.

What does a laser collimator do?

A laser collimator allows one to conveniently align the optics of a reflecting telescope. First, you use the laser collimator to determine whether or not the secondary mirror is pointing directly at the center of the primary mirror. ... The laser beam will reflect off the secondary mirror and reach the primary mirror.

How does Cheshire collimator work?

Through a lateral opening, ambient light falls on the brightly painted oblique back of the peephole. Images of this bright surface are reflected by the mirrors or lenses of the telescope and can thus be seen by a person peering through the hole. A Cheshire eyepiece contains no lenses or other polished optical surfaces.