This image is just 10 x 70 second exposures made with a modified 300D and Sigma 300m f2.8 APO EX HSM lens. Lens was stopped down to f3.5. The image has had basic processing (i.e no sharpening or noise reduction) done.
For other size images (up to 1280 x 852) see:
http://www.pbase.com/terrylovejoy/image/70070931
Also for a fullsize crop around the Tarantula:
http://www.pbase.com/terrylovejoy/image/70071244
Terry