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Old 08-11-2015, 01:13 PM
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peter_4059 (Peter)
Big Scopes are Cool

peter_4059 is offline
 
Join Date: Jun 2007
Location: SE Tasmania
Posts: 4,574
Quote:
Originally Posted by RickS View Post
Suavi has a 102mm f/7 with 0.8x reducer and ICX-814 sensor, IIRC. Compared with that, your system will be about 2.8 times faster at Ha wavelength. I have a simple spreadsheet model that takes into account aperture, % obstruction, focal length, optical efficiency, pixel size and QE.

Cheers,
Rick.
Thanks Rick - so his image had a total integration time of 75600 secs and mine had 21300 secs so a factor of 3.5 difference. Interesting how much smoother Suavi's image looks.
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