Quote:
Originally Posted by Garyh
The F/8 newt has the best spot size but geezs it would be a bugger to mount and weigh a heap compared to the RC, not real practical in most situations
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I suggested that an off the shelf F4 or F5 Newt with a quality barlow lens for less than half the price would be worth looking at if you wanted to do some longer focal length imaging . If I was on a budget I certainly would.
As we speak I know of 3 high end rigs being constructed in this country using 12" to 14" Newts and high end cameras ( Paramounts, Asrophysics mounts , plus ST11000 cameras etc ) so
the image quality of well constructed coma corrected Newts as astrographs is not unknown amongst advanced astro-photographers.