Finally got a complete clear night with reasonable conditions. So I added much more data to data from the other night.
Details Canon 5DH, Canon 300mm F2.8L at f/5 with aperture.
Exposures all at 400 ISO and the fridge set to -5.0C. The interior is at a constant -0.9C at this setting. This is the environment the camera is in.
Exposures 12X(2m&4m), 24x8m, 8x16m. The usual HDR method.
Large full resolution image 4MB.
http://members.optusnet.com.au/~fmlee/rho09.jpg
The faint dust shows up much better with less noise due to the cooled camera. This is a crop and the FOV is 5.4x4.6 degrees.
Bert