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Thanks Fred - I spent a lot of time back and forward between the laptop screen and the focuser - especially on the red channel. I like the idea of being able to watch the image update as the focus is being adjusted and the Focuspal software allows you to make smaller and more even steps than I can using the manual focus.
I haven't used flats yet mainly because I don't own a light box but also because it adds more time and complexity to acquiring and processing the image and I thought the DSI chip was small enough for the images to not suffer from vignetting. For darks I use the DSI's auto dark subtract function.
Peter
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