Telescopes in moonlight. These are examples of the three main optical systems: catadioptric, reflector and refractor; and three main mounting systems: fork, Dobsonian and German equatorial. Also showing telescopes for visual use (on the left) and the refractor for photographic use, with camera. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Alan Dyer, VWPics |
Taille de l’image : | 5400 px × 3600 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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