http://www.myastrophotography.com/2008/merry-christmas-with-pleiades/ Astrophotography | Astronomy | Astro Equipment | Reviews | Tutorials | News Thu, 15 Apr 2010 00:02:48 +0000 http://wordpress.org/?v=2.9.1 hourly 1 http://www.myastrophotography.com/2008/merry-christmas-with-pleiades/#comment-157 Astrophotography » Astrophotography How-To Tutorial: Part III - The telescope Sun, 22 Feb 2009 16:56:39 +0000 http://www.myastrophotography.com/?p=57#comment-157 [...] Next are middle-sized deep-sky objects. The best focal lengths for them are from 1000 mm to 2000 mm. Newton telescopes and larger refractors has the most appropriate specifications for imaging this type of objects. The auto-guiding is really necessary here because just the best mounts can slew accurate enough to assure the pin-point stars at these magnifications. In this range we find almost all the object from Messier’s catalogue and the brightest NGCs. One of my pictures taken with Orion Optics Europa 8″ f/4.5 are Pleiades. [...] [...] Next are middle-sized deep-sky objects. The best focal lengths for them are from 1000 mm to 2000 mm. Newton telescopes and larger refractors has the most appropriate specifications for imaging this type of objects. The auto-guiding is really necessary here because just the best mounts can slew accurate enough to assure the pin-point stars at these magnifications. In this range we find almost all the object from Messier’s catalogue and the brightest NGCs. One of my pictures taken with Orion Optics Europa 8″ f/4.5 are Pleiades. [...]

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