Had a full clear night and managed to image four fields with the 300mm lens. So I whipped up this mosaic with RegiStar. Each field had at least 14x3min exposures at at ISO of 200.
Image details 3.9MB and 7912x5103 pixels. The field of view is 12.5X8.0 degrees.
http://users.bigpond.net.au/avandonk/Car_mos_sat+.jpg
The original tiff is about 240MB and the highest quality JPG is 42MB.
Bert