This was taken with a modified Olympus EPM2 and Sigma 60mm f/2.8 at f/2.8 and ISO 800. It consists of 73 x 3 minute sub frames with dark and bias frames subtracted. I placed the camera in a homemade thermoelectric cooling box and I removed the back screen in order to make a better temperature drop. This took me three days of imaging and the outside ambient temperature ranged from 9C and 12C and the actual sensor temperature got down to -5C and -1C according to the exif data, thus reducing thermal noise substantially. These nebulae are very dim and I was shooting in an area of the sky that has a lot of light pollution, so it was a real challenge to get much detail and contrast from the raw files. Cheers!