It has been a long time since I have processed any images due to orthopedic issues that have kept me from sitting for long at a desk. I have lots of data and M101 is first on my backlog list.
TOA 130
STT 8300
Paramount ME
Captured with SGP and PhD2
23.5 hours
Processed PixInsight
I did not take Ha data to “enhance” the nebulae. Personally I hate that - it is flat ugly and makes galaxies look like they are anti-vaxers (they did not get their measles vaccine). This is straight LRGB.