Hi Les, Probably not, although your offset setting could have made some difference..... You may be able to see the image in Nebulosity if you go to the histogram and uncheck the checkbox above and drag the right side pointer of the histogram further towards the left. In effect this is stretching the histogram and should show the faint fuzzies a bit better. You will need to stack and stretch the images properly to get a final image.
As for the gain and offset settings, Craig Stark has written a very good explanation on setting and forgetting these two settings in the Nebulosity documentation available on his web site. This does take care of the most trying part of imaging with a QHY8. The rest is easy.
Hope this is of some assistance, and I hope you enjoy your new camera.
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