Reflector telescopes are a type of telescopes which uses two or more reflective mirrors to produce an image. This type of telescope has a large curved mirror which receives the light and that light could be reflected to the second mirror which could be used by the naked eye for viewing. The secondary mirror is smaller as it receives the reflection of the larger curved mirror. The important factor for reflector telescopes is its ability to absorb as much light as it can. If it cannot absorb light, the reflector telescope will never work since there is no image to reflect in the beginning.

A clear advantage of a reflector telescope is the length of scope. Since the primary curved lens is at the back, the lens could be as big as possible depending on the user. Those images could be easily reflected to the secondary mirror, providing better view of the skies. The price of reflector telescopes is also more affordable considering the simple design of the telescope. Adjustment is also very easy since only the secondary mirror needs an adjustment to cope with the view offer by the primary mirror. Lastly, aberration in chrome is also is also minimized due to its simplified operation.