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Old 16-10-2019, 12:44 PM
Startrek (Martin)
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Join Date: Dec 2017
Location: Sydney
Posts: 1,701
Daniel
Your cameras pixel pitch ( uM) should have a bearing on what scope you choose especially in Bortle 3 skies down the south coast
General rule of thumb for image or pixel scale is aim for 1 to 2 arc sec per pixel. Im imaging at around 0.90 with my newts which is slightly over sampled but works well at Sydney and better at Narrawallee
As far as Aperture goes an 8 should be large enough as Im imaging up to magnitude 9.5 galaxies at Narrawallee with my 8 f5 newt at only 1000mm focal length
You want to get your image scale closer to 1.0 arc sec per pixel to take advantage of those beautiful dark skies down there
Cheers
Martin
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