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=== $2000+ – DSOs, but better === ---- * Mount: EQ5, Orion Atlas / EQ6r / EQ6 (new): Approximately $2000 on [https://www.skywatcherusa.com/products/eq6-r-pro Skywatcher USA], Can be found cheaper used. * Camera: Nikon/Canon DSLR: Approximately $200-400 on Ebay or Craigslist. * Software: NINA - Free. * Telescope: AT6in imaging newtonian: $300 * Accessories: T-ring, T-adapter, dovetail, tube rings for 6” newtonian: Varying prices, check online. Potential images: [http://i.imgur.com/r0bIyAP.jpg M51] ([http://www.reddit.com/r/astrophotography/comments/29r4gd/m51_the_whirlpool_galaxy/ Credit]) ---- ==== Improvements ==== ----For a bit more money we can add a Coma corrector and an Autoguider. The coma corrector fixes distortions around the edges of the telescope and the autoguider will let you take longer exposures. If you are using a refractor, look for a Field Flattener. * Accessories: T-ring, T-adapter, dovetail, tube rings for 6” newtonian: Unknown price, check Ebay. * Coma corrector – Astronomics coma corrector for fast newtonians - $135 * Autoguider – [https://agenaastro.com/zwo-asi120mm-mini-cmos-monochrome-astronomy-imaging-camera.html ZWO ASI 120MM Mini] and [https://www.amazon.com/SVBONY-SV106-Multi-Use-Helical-Astronomy/dp/B07MPYDYLZ SVBONY 50mm Guidescope] - $230 (together) Note: For smaller setups (e.g. camera lenses), you can use a 30mm guidescope instead which saves weight and is easier to mount. For larger scopes (e.g. SCTs, RCs, large newts, etc), you will want to use an off-axis guider instead which uses a prism to redirect light to the guide camera, eliminating the need for a secondary guidescope. This setup is one that'll last you as long as you want. The slight downside is that the focal length of the AT6in is quite short for some targets and you may find yourself wanting a longer scope. For this budget you may wish to look at other telescope options such as 80mm apochromatic refractors (e.g. Orion ED80T, Skywatcher Evostar 80ED). The Sirius is an incredibly capable mount when coupled with autoguiding and a good polar alignment, mine will let me capture pinpoint stars for as long as I want it to. Potential images: [http://i.imgur.com/xskJkpy.jpg Flame nebula] ([http://www.reddit.com/r/astrophotography/comments/2ii87x/the_flame_nebula/ Credit]) [http://i.imgur.com/liPWFKR.jpg NGC7661] ([http://www.reddit.com/r/astrophotography/comments/2j23oh/ngc7331_and_friends/ Credit]) [http://apod.nasa.gov/apod/image/1407/m31_bers_1824.jpg Andromeda Galaxy] ([https://www.reddit.com/u/bersonic/ Credit]) ----
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