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Old 16-01-2007, 03:10 PM
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[1ponders] (Paul)
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Join Date: Nov 2004
Location: Obi Obi, Qld
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Did you try the DSI without the filter to check whether the dust isn't on the CCD chip?

I'd agree with the screw in IR filter rather than the one that comes with the DSI. If you get a Baader IR/UV filter it can then be used on a webcam if you decide to get one for planetary imaging.
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