Start here · Essential guide
Telescope Types Explained
Learn how refractors, reflectors and compound (catadioptric) telescopes differ, what each does well, and how to match a telescope type to what you want to see.
Choosing a Telescope
Telescope Types
7 guides, starting with Telescope Types Explained.
Cassegrain vs Dobsonian Telescope
Cassegrain vs Dobsonian: compare portability, aperture per dollar, mounts, cooldown and ease of use to decide between a compact SCT and a large Newtonian.
Refractor vs Reflector Telescopes
Compare refractor and reflector telescopes: how each works, image quality, cost per inch of aperture, maintenance, and which suits planets or deep-sky viewing.
Schmidt-Cassegrain Telescopes: Pros and Cons
A balanced look at Schmidt-Cassegrain telescopes: portability, long focal length and go-to mounts, versus cost, cooldown, dew and collimation considerations.
Spotting Scope vs Telescope
Spotting scope vs telescope: how they differ in design, magnification, image orientation and use, and whether a spotting scope can show the Moon and planets.
What Is a Compound Telescope? Design and Uses Explained
A compound telescope combines mirrors and lenses to fold the light path. Learn how SCT and Maksutov designs work, what they are used for, and their trade-offs.
What Is a Refracting Telescope Used For?
Find out what refracting telescopes are used for, from viewing the Moon, planets and double stars to wildlife and astrophotography, plus their main limitations.
Related topics
More in choosing a telescope
Choosing a Telescope 6 guides, starting with How to Pick a Good Telescope: A Buyer’s Guide. Dobsonian Telescopes 5 guides, starting with Dobsonian Telescope for Beginners: Why It Is a Great First Scope. Telescope Optics & Specs 6 guides, starting with What Is Aperture on a Telescope? Why Size Matters. Eyepieces & Finders 5 guides, starting with Telescope Eyepieces Guide: Types, Sizes and Choices. Telescope Filters 3 guides, starting with Telescope Filters Guide: Which Ones Are Worth Buying.