A reflecting telescope is an optical instrument that uses a concave parabolic mirror to gather and focus light onto a single point, rather than using lenses. This design increases the effective focal length, allowing for high-magnification observation of distant objects.
Reflecting telescopes are widely used in astronomy and astrophotography because mirrors can be made larger and more precise than lenses, reducing chromatic aberration and other optical distortions. They provide bright, sharp images of stars, planets, and deep-sky objects, making them a preferred choice for both amateur and professional astronomers.