Sky-Watcher 6" f/4 Quattro Imaging Newtonian Telescope (OTA)

The 6" f/4 Quattro Imaging Newtonian Telescope from Sky-Watcher is a large-aperture astrograph, ideal for users searching for a fast-imaging system that will work for both astrophotography and visual astronomy. Boasting a swift f/4 focal ratio, this astrograph can produce an exposure 6x faster than the average 8-inch f/10 Schmidt Cassegrain telescope (or 8.4x faster with the included coma corrector/reducer). Although designed as an imaging optical tube, these Newtonians also produce bright and detailed viewing for visual astronomy.