WitrynaIn fact, the Orion 8" f/3.9 Newtonian Astrograph's powerful imaging performance easily exceeds what's achievable with many premium apo refractors costing thousands of dollars more. Its 8" parabolic primary mirror has 800mm of focal length, making the fast f/3.9 Newtonian an ideal wide-field astrophotography telescope. A substantial 70mm … WitrynaBuonasera dall'America, focheggiatore robotico! The Orion 10" Ritchey-Chrétien Astrograph is my best choice for a better field of view. I didn't go with th...
Orion 10" f/4 Newtonian Reflector Astrograph - Amazon.com
WitrynaThe flat fields are achieved by employing a state of the art, lens corrector system, designed especially to produce a wide, flat fields up to 60mm diameter. All our AG … WitrynaI am considering the Orion Astrograph 10-inch Newtonian, or a Skywatcher Quattro 10-inch, (carbon fiber) Telescope. Or maybe a Celestron c11 Losmandy SCT? Is there much difference in quality between these scopes? I have a Canon 600D. Does anyone have recommendations for coma reducers? medway schools on strike
Orion 8" Newtonian f3.9 Product Overview - YouTube
Witryna23 paź 2011 · Can an Orion 10" f/3.9 Newtonian Astrograph Reflector Telescope at that fast focal ratio be made into an excellent visual scope with the help of a TeleVue Paracorr Type 2?? Seems like lots of money but if it makes a 10" F3.9 have very sharp optics for about the cost of one eyepiece, why not? Witryna7 sie 2010 · I have the Orion 10" f3.9 astrograph. The scope was designed to attach a DSLR to it and reach focus. If I put my DSLR on, I don't need any extensions, and it comes to focus at about 1/2 inch of travel above the focuser. So, the focus on my scope is probably about 70mm above the opening or top of the focuser. Witryna14 kwi 2024 · CFC vs ozone layer hole success story. by SkyHiker » Fri Apr 14, 2024 12:35 pm. 45 years ago, I was a member of an environmental group and collected signatures against the use of CFCs that were destroying the ozone layer. It's nice to find out that with the collective publicity and cooperation of the industry the ozone layer is … medway school term dates