Just for kicks I converted my M42 to greyscale. The dynamic range is so much more evident in B&W. http://www.robgendlerastropics.com/M42BW.html Rob Gendler Email: robgendler@att.net Web site: http://www.robgendlerastropics.com/ _______________________________________________ Astro-Photo mailing list Astro-Photo@seds.org http://seds.org/mailman/listinfo/astro-photo