Dobson Teleskop N 353/1700 T350 Professional SMH DOB

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.

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

The shadow effect of the telescope optics due to the secondary mirror, because this lies in the optical path.

This heater prevents condensation on a reflecting telescope’s secondary mirror.

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.

Are mainly differentiated between equatorial and altazimuth. A special type of altazimuth mount is the Dobsonian mount.

Large and high-quality optic with an inexpensive rockerbox mount.

Object positioning system, available in real GoTo and also PushTo versions.

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

Eyepieces are needed for observing. Depending on the focal length, you achieve a certain level of magnification.
The specification 1.25" refers to the diameter of the connector (1.25" = 31.8 millimetres).

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.