Glossary | Telescope accessories | General | Type of build
Amici prism
Erecting lens for terrestrial observation with a telescope.
Blocking filter
A very important part of the solar telescope system, which can only be used together with filters on the lens!
CLS broadband filter
CLS stands for city light suppression, which is the suppression of artificial light.
ED eyepiece
Eyepieces with an ED element, as seen in apochromatic binoculars.
Flattener
The flattener is an additional lens to correct field curvature.
Guide scope rings
Brackets for small telescopes used for tracking control.
Guidescope
Guidescopes are small telescopes that are used to control tracking.
Kellner
Inexpensive eyepieces for entry-level telescopes.
Line filter
Filters that allow only light in a specific spectral line to pass through.
Micro focuser
Accessory for better focusing
Mounts for system cameras
Brackets for connecting cameras with photographic lenses to astronomical mounts.
Narrow band UHC filters
UHC filters increase contrast by suppressing disruptive light sources.
Orthoscopic
These eyepieces offer a particularly flat field of view from the centre to the edge.
Pass filters
Filters with a pre-determined bandpass range
Planetary & comet filters
Colour and pass filters for assisting planetary observation and photography.
Plössl
Inexpensive standard eyepieces, which are also included in the scope of supply of many telescopes.
Pole finder
Used to precisely align a mount to the celestial pole.
Rechargeable battery
A rechargeable battery can be recharged and re-used many times.
SWA
Eyepieces with an apparent field of view of between 60° and 70°.
Smartphone adapter
With this adapter, the smartphone becomes a simple planetary camera.
Telecentric
Increases the focal length and creates a parallel beam of light
Tripod accessories
Adapters, storage shelves and other useful tripod accessories.
UWA
Eyepieces with an apparent field of view of between 70° and 100°.
Vixen
A standard measurement for prism rails and clamps, introduced by the manufacturer Vixen.
XWA
Eyepieces with an apparent field of view of 100° or more.
Zenith mirror
Provides a comfortable telescope viewing position.
Zoom eyepiece
Eyepiece with variable magnification.