astroman001 Posted May 1, 2020 Share Posted May 1, 2020 Here is a DSLR image of M101. ISO 400, 25 x 2 min subs ED80 f/6.3. There is a lot of background noise which is annoying. Peter 4 Link to comment Share on other sites More sharing options...
tooth_dr Posted May 1, 2020 Share Posted May 1, 2020 Excellent Peter, for 50 mins there isnt much more you could hope for ufortunately! If you get another 7 hours it you will see a huge improvement on the background noise, I found 8 hours my sweet spot with a DSLR on an ED80. Link to comment Share on other sites More sharing options...
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