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Paul,
Thanks for that. Mag 19 is pretty good. To be honest I wish I was reaching 20+ at 10 minutes of exposure, but I shouldn't get too picky. It's all a big game of numbers... decrease the resolution and increase the focal ratio... decrease the image size (bin 2x2) and increase the captured magnitudes...
Those images of yours from the cookbook are good, I had no idea a cookbook camera could produce such nice images. It's been a long time since I saw images from one of them. I'm not sure I could beat those images now with my SBIG!
Interesting too that the cookbook was a non-ABG camera like my ST7 too, must have helped you a lot with the sensitivity.
I'd like to improve the clarity/sharpness of my images and reduce noise and other problems. I don't feel I've ever improved much in that respect with the ST7 images. Film and DSLR shots I don't have a problem, but I perhaps tend to try and push the ST7 images too far, hilighting the problems in them more. Keen to get more exposure detail to improve SNR.
Roger.
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