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Why do higher pixel densities require faster shutter speeds?

donfaulk

Madison, US
75 posts

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donfaulk Silver Member Nikonian since 08th Aug 2009
Sat 18-Dec-10 02:15 PM

In the threads discussing reported softness issues with the D7K, one of the most often mentioned points is that the new higher-resolution sensor requires the use of a faster shutter speed in order to avoid blur from camera shake. I can readily see that in a 1:1 comparison of images made with a 16mp sensor as compared with a 12mp sensor, problems in technique might be more observable in the 16mp image. The 16mp image would be larger and (in a sense) “magnified”. What I don’t understand is why, if both images are viewed at the SAME image size (e.g. 8”x 10”), the 16mp image would exhibit “camera shake” not seen in the 12mp image. What is the reason for this? (Assuming other factors such as lens focal length, etc., to be the same in both cases).
...Don F.

Don F.

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