Which Telescopes Need Collimation?
Certain Designs — Reflectors and Schmidt-Cassegrain Telescopes, or Scts — Require Collimation Every Time You Set Up. Refractors Are Factory Aligned, and Due to...
Certain designs — reflectors and Schmidt-Cassegrain telescopes, or SCTs — require collimation every time you set up. Refractors are factory aligned, and due to their fixed lens, they hold collimation well.
Which telescope does not need collimation?
Refractor telescopes are permanently collimated at the factory and therefore should never require collimation. In general, reflector telescopes are prone to go out of collimation, especially when carried in your car.
Do Dobsonian telescopes need collimation?
Refractors differ in that they are factory aligned and have a fixed lens, so they rarely require collimation. Maks also tend to hold their collimation well. A Dobsonian is a reflector telescope, it uses mirrors, a primary and a secondary, and these need to work together.
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