Apochromatischer Refraktor AP 80/600 Evostar 80 EDX

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

The aperture indicates the diameter of the objective lens or the mirror.

Is the ratio of the aperture to the focal length of a telescope.

Describes the brightness of a star or point-shaped object, which can still just be distinguished by the telescope. The naked eye, for example, can make out stars with a magnitude of up to 6.

The telescope’s magnification should not exceed this factor, because otherwise the image will appear weak and dark.

Including eyepiece, but excluding dew cap.

There are basically two different construction types: the rack and pinion focuser and the Crayford focuser.

A Crayford focuser is a ball bearing guided friction drive and allows a very precise adjustment of the focus.

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 mini telescope used to locate a celestial object. There are optical finders and red dot finders.

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.

High quality all-rounders for observing.

Telescopes for safe solar observing.

Telescopes that are supplied as a complete system and are easy to operate.

Telescopes suitable for a fixed mount, whether that is in the garden or an observatory.