Hi Andy,
Well, I own 2 of the cameras on your two lists! (Moravian G2-8300 and the Trius). Each has advantages! The Kodak chip is bigger so might suit your nebula desires and anything wide field. But, it's much noisier than the Sony chip and a bit less sensitive. I've been able to use my Trius without darks or flats so that is very nice!. In my view if your primary interest was shooting galaxies or PN targets the Sony might win, but for a good field I'd still go with the 8300 chip.
Peter
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