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Canon EOS 5D MkII - Test Shots - ISO Performance

Over the next few pages we show a range of test shots. On this page the full size image at the minimum and maximum ISO settings have been reduced to let you see the full image, and a series of full resolution crops have taken from original images at a range of ISO settings to show the overall image quality.

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/94/b6e0e2/3936/10207-eos5dmk2isomin.jpg

This is the full frame at 100 ISO.

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/94/bfb0a0/3b4e/10207-eos5dmk2iso100.jpg

The focusing appears to be slightly off in this shot, but there is no image noise at all.

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/94/241f6d/7890/10207-eos5dmk2iso200.jpg

Still no noise t 200 ISO...

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/94/a03c1f/8f41/10207-eos5dmk2iso400.jpg

....400 ISO...

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/94/8073ea/7cc5/10207-eos5dmk2iso800.jpg

...800 ISO...

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/94/22aa95/98da/10207-eos5dmk2iso1600.jpg

...1600 ISO. There is a tiny hint of noise in the green channel, but barely enough to notice.

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/94/7b489b/321c/10207-eos5dmk2iso3200.jpg

At 3200 ISO there is a smattering of noise all over the image, but it is still quite printable.

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/94/1037f4/2248/10207-eos5dmk2iso6400.jpg

Slightly more noise at 6400, but still plenty of detail.

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/94/84c073/a49e/10207-eos5dmk2iso12800.jpg

Extended to an uncalibrated 12,800 ISO there is quite a lot of noise, but the banner letters are still readable.

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/94/9cae3c/19ee/10207-eos5dmk2iso25600.jpg

At 25,600 ISO the image quality is finally breaking down, as well it might.

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/94/e08690/f560/10207-eos5dmk2isomax.jpg

This is the full frame at 25,600 ISO, which I don't think I've ever typed before.

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