Nikon D4 vs. Nikon D3s High ISO comparison test, from the test we can see that Nikon D4 images are usable up to ISO 51,200 and Nikon D3s Images are usableĀ up to 25,600.
Nikon D4 at Amazon || Nikon D3s at Amazon
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High ISO test: Nikon D3 vs D4
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