Very nice Stuart,
Interesting colouring in the stars, is that from using Luminance
and RGB?
The reason I ask is because the one I took of M22
here (albeit with a 1000D) doesnt have the blue and yellow stars like yours.
I suspect its because I dont have enough data, probably.
Very good start with the RC, the stars came out nice and round and the core is nicely resolved.
Well done!
Cheers
Chris