Sky-Watcher - The worlds largest telescope manufacturer. This 8” SkyWatcher Quattro f4 Imaging Newtonian has an 800 mm focal length. I'm also going to include the Quattro f/4 Coma corrector as it works absolutely perfect with this scope. The Quattro 8in is a fast f/4 (800mm focal length) Newtonian with extra features that make it a really nice OTA for imaging as well as wide field visual observations. Its 800mm focal length has been shortened to produce a fast f/3.9 focal ratio which helps to reduce the exposure times required for capturing detailed images of the Moon, planets, and deep-sky objects. It incorporates a superbly-figured multi-coated borosilicate optical glass mirror-set. SkyWatcher 8” Quattro Imaging Newtonian The SkyWatcher Quattro 8 is a fast f/4 Newtonian with extra features that make it a really nice OTA for imaging as well as wide field visual observations with the addition of its dedicated coma corrector (sold separately). The 8" Sky-Watcher Quattro Imaging Newtonian with dual-speed focuser is optimized for wide-field deep space imaging, but can also be used for pleasing visual observing. 110-pound (50 kg) Payload; Belt-drive on Both Axes EQ8-R, EQ8-RH. Additionally, the tube length has been slightly shortened to optimize performan The new Sky-Watcher Quattro Imaging Newtonian with dual-speed focuser incorporates a superb mirror-set with two significant advantages over competing products. 8-inch or 10-inch apertures with steel tubes and knife-edge ray traced baffles. EQ8-R EQ8-RH. Sky-Watcher 's 8" f/3.9 Quattro Imaging Newtonian Telescope has been specifically engineered for astrophotography and astro-imaging performance. BKP 130 DS BKP 150 DS BKP 250 DS BKP P200 DS Quattro 200 ST Quattro 250 ST Quattro 200 CF Quattro 250 CF; Optical Design: Parabolic Newtonian Reflector: Optical design A 2" dual-speed 10:1 ratio focuser is included for excellent focusing precision. (Photos show 8-inch model) The Sky-Watcher Quattro series are premium quality imaging Newtonians with a wide field of illumination and fast f4 focal-ratios.
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