This image shows some of the hydrogen rich regions near the belt and sword of Orion. North is to the left.
Details
Date and location2011-09-29 in my backyard, Victoria BC.
Conditions - Clear and 10 deg C with a very thin overcast.
Equipment - Modified Canon T1i camera with Astronomik 12nm H-alpha filter and 100 mm Canon Macro lens on guided HEQ5 mount. 66mm Skywatcher guide scope with PhD software.
Exposure - 5 light frames 10m each at ISO 3200 and f/3.5 plus darks and flats to calibrate.
Processing in Images Plus and Photoshop.