Hi Peter,

Thank you for your reply. You are right, in the last days I have only tried longer exposures but never ones shorter than 1s. It works as you described, using 0.5s returns image data. I haven't exactly understood this limitation, as I am using 3s exposures on my Windows / ASCOM / PHD2 setup with this camera (following PHD's recommendation to use longer exposures to average out seeing effects).

So at least I know now that it's not a problem related to some settings in my installation.

Frank

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