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Old 15-11-2017, 08:57 PM
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Slawomir (Suavi)
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Slawomir is offline
 
Join Date: Sep 2014
Location: North Queensland
Posts: 3,240
Quote:
Originally Posted by Atmos View Post
Lovely wide field Suavi! Going to go for a HaRGB? SHO?
How have you found it reducing to F/4.5?
Thank you Colin. The field with CFF dedicated flattener is flat as, and focus shift with temp change is practically in existent, while with the Riccardi things are quite more challenging - 0.5mm spacing makes a really big difference to field flatness and refocus is needed at least every 1C. But I like the speed of refractor at f/4.5, which probably compares to f/4 reflector with the same imaging scale. After reading about you getting that awesome f/3 beast, I am even more inclined to eventually follow a similar path to the bright side...

Quote:
Originally Posted by RickS View Post
Very nice, Suavi! Would look better with a little noise and star reduction, of course
Glad you like it Rick. I think I will stay in the minimalists camp (processing wise) for now
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