|
I am way too inexperienced to help much, but here is an unprocessed photo I took in similar circumstances with the same lens:
37secs, f4.5. ISO1600 @ 8mm on the Sigma 8-16 on a 650D
A rather annoying streetlight caused the red reflection to the right of the LMC, but otherwise everything is reasonably in order. It is hard to get a tight focus across the whole field, and I think that this could be part (if not all) of your issue. Closer examination of this image shows that I need more practice with focus.
|