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As Craig Stark always said SNR is the prime factor in AP
When I used my DSLR, noise was a big big problem so I used every avenue to try and mitigate it. If you achieve that , the signal will sort itself out
Strategies to mitigate noise in my 600D were -
Shorter subs ( dark site max 2 to 3 minute, LP site 60 sec to 90 sec )
Narrowband filters
Sweet spot ISO ( 800 )
Dark subtraction ( at least 40 to 60 dark frames taken after subs )
Dithering (dither based on image scale ratio - main camera to guide camera )
Stacking more data ( more the merrier)
“ Not a one shoe fits all scenario”
“ Sky conditions play a huge factor as well “
I usually pick a test object and try various approaches / settings to get the best outcome. It’s worth investing the time , your images will improve !!!
Cheers
Martin
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