Still a work in progress for my M42 shot. 13 light frames, 5 minutes each. Taken with a bright Moon out. 10 one second flat frames averaged and subtracted along with 10 dark frames. Shot with a 10D and the IDAS light polution filter. Televue NP-101 on a G11/Gemini. Guided with an ST-4 mounted in converted 9x50 finder. Sigma averaged in Images Plus, with further processing in Photoshop.