- Aug 23, 2007
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Can't show noise without holding everything but ISO constant, and if you're hand-holding that is not holding things constant.
I guess maybe it's dust then. f/6.3 is at the diffraction limit or even beyond it, at that sensor size. Up to you whether or not you want to ask for an exchange or something.
You have to vary exposure time though which actually does affect noise. I don't see how camera shake would affect noise
I did the RMA already. I think I'm just going to order the replacement now so I have it in time for a trip in 2 weeks.