Finally, if you want a reasonably large aperture but at the same time need portability to travel to dark skies, then a catadioptric is a great choice.
Finally, if you want a reasonably large aperture but at the same time need portability to travel to dark skies, then a catadioptric is a great choice. Their apertures run between 3 and 16 inches (7.6 and 41 cm).