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Ryan
Is your image processed ?
Most Canon DSLR’s have an ISO sweet spot at ISO800 I’ve never imaged at 100 ?
I image in Sydney ( 25km from CBD ) under Bortle 8 skies with my 6” f6 newt and don’t use a CLS filter in my Canon 600D unmodded even though I have one. Also I have 2 story house either side of me with wall lights and backyard floods unnecessarily on most of the night ( so annoying)
Here’s a 2 minute PHD2 guided sub of a cluster M22 and a post processed image after using Startools which wiped all the light pollution away
I have other image of M42 with similar good results see photos attached
You must be under worse than Bortle 8 skies as I can post process and remove most of the light pollution with Startools
What is your guiding set up ?
Martin
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