M1 the Crab nebula
3 -10 minute exposures on January 12, 2012. It has been 2 months since I was imaging, all due to the bad weather of the last few months.
Image was stacked and DDP was applied in ImagesPlus and finished in Photoshop.
Image acquired with a 40cm F/4 Newtonian, QSI583wsg CCD camera and Astronomik 7nm H-Alpha filter.
3 -5 minute exposures on January 12, 2012.Only one 5 minute RGB exposure each before the clouds came in again.
processing in Images Plus and Photoshop
31 - 2 minute exposures on March 12, 2007, ISO 800
This image was made with a modified Canon 350D, and a 20-cm (8") f/2.75 ASA Astrograph.
Full size crop from the full image