Telecompressor
From Wikipedia, the free encyclopedia
A telecompressor is an optical element which amateur astronomers use to reduce the focal length of a telescope.
Mainly used for astrophotography, the telecompressor gives a wider angle of view, a sharper picture, and reduces the exposure time needed[1]. These are useful when taking pictures of nearby large objects, such as nebulas. The effects and uses of the telecompressor are largely opposite to those of the teleconverter.
 |
This astronomy related article is a stub. You can help Wikipedia by expanding it. |
