M42 Try 3!

OK.  Last night I made yet another attempt at photographing M42.  This time I took a series of 90 second exposures, got all the needed flats, darks, and bias frames, and processed them with slightly more understanding of how to manipulate photos.  Behold!

expanded-stacked-image

The red colors are still very faint, and I had to crop the image more than I wanted because of field rotation artifacts. but the level of detail visible is incredible compared to my earlier attempts.  I am quite satisfied with this image!