This image of M1 "The Crab Nebula" was shot with my new SBIG ST7 CCD camera. I recently sold my largest scope to buy this and enter the world of self-guided CCD's. However, I still haven't gotten all the guide bugs worked out, and for the time being, I am still guiding with a separate camera - my DSI Pro.
This camera works a little different I am figuring out. Most of my other camera's like a lot of stacked medium to short exposures to keep the noise level low. This camera seems to do best with a few stacked long exposures, the longer the better.
Anyway, this image is the result of median stacking 7 three minute images.
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