Sonnenteleskop ST 60/930 SolarScout SS60-DS H-Alpha OTA

There are basically two different types of telescope. A distinction is made between refractor (lens) and reflector (mirror) telescopes.

This is the distance between the objective lens or mirror and the focal point.

The ability of the optic to discern the fine detail of objects that are close together.

Most telescopes are made of steel, aluminium or carbon fibre.

Focusers are available in 1.25" or 2" formats. Many 2" focusers also have a 1.25" adapter.

Describes the exact construction of the particular mount and thereby further subdivides the different types of mount.

An OTA is an optical tube without a mount. It is short for optical tube assembly.

A telescope always displays an object upside down. This law of optics can only be compensated for by an erecting system. Erecting lenses, diagonal mirrors or Amici prisms provide you with an upright image. Diagonal mirrors provide an upright but back-to-front image and Amici prisms provide an upright and right-sided image.

Telescopes for experienced observers, but also for ambitious beginners.