Hi All.
Finally processed my data of Omega. Subs were shot on the same night as my Helix image back on the 6 July.
I've created some calibration frames since the Helix post (it was a stack of lights only) and have applied master bias and master dark frames to this image. Flats however, have been at odds with me. I've found it hard to get decent data in the red channel due to the CLS filter, anyway I'll get there one day
M17 - Taken with 60Da with hyperstar lens / C11 Edge HD.
Total 26 minutes 15,30,60 and 90 sec subs, unguided (no biggy, FL 588mm)
10 mb version
here
Processed in Pixinsight
Thanks for Looking
(Second attachment is the re processed image)