So here's another version of the previous two of M13. As many of you have noted the experimentation can be and is endless. The last 2 images were done very quickly from JPGs which I've found to be adequate but if the image warrants it the RAW files are better. I used the same reduced set of images but used the RAW files this time. In terms of dynamic range this image is closer or perhaps even better than the first image.

Processing: Selected stack of 8 light images with corresponding dark frames. Maxim DL5 Sigma Clip Combine with DDP, finished in Adobe Photoshop CS5.