Thanks Rob,
The shot isn't cropped, its the native FOV of the Atik / Newt combo.
I use a bahtinov mask for focusing, it may have slipped before I took this, I check it regularly, but it could have been out.
I have noticed the stars bloat slightly compared to the DSLR, probably due to the longish exposures and the increased sensitivity of the CCD.
Chris
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