LMS Processed M8

After posting to the DSLR image processing group  about LMS processing for one of our challenge images, I decided to try the technique on a M8 image I took a few years ago. The image is a bit under exposed as I only had about 20 minutes before the nebula dipped into the trees. Even with a less than optimal exposure there is plenty of detail there. The trick is to be able to apply different stretches to different parts of the image. The bright central area holds up well to a more extreme stretch yielding lots of detail while the fainter areas break down into a pile of noise under such stretches. LMS processing provides a way to apply different stretches to different parts of the image giving the detail in the image below. The processing details applied to the DSLR processing group challenge image as well as this image are detailed in the workflow here.  To see a zoom of the central area of the nebula click on the image, click again to return to the full image.
Object The Lagoon Nebula (M8) RA 18:03:00 Dec +24:20:00
Exposure 20 minutes (10 X 2 Minutes)
ISO 1600
Camera Canon 60Da DSLR
Optics 200mm SkyWatcher f/5 Newtonian reflector with Paracorr for a total  focal length of 1150 mm

Marion Bridge, N.S., St. Croix, N.S. and  Smiley's Provincial Park

Processing Calibration and stacking  Images Plus . See this pdf for details