Canon EOS 550D - 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. These pictures were taken indoors using reflected natural light.

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This is the full frame at 100 ISO.

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At the minimum ISO setting the image quality is flawless.

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It's the same at 200 ISO...
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...and at 400 ISO

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There's a tiny hint of noise at 800 ISO.

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At 1600 ISO the 550D is producing less noise than the EOS 7D.

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There is noise at 3200 ISO, but the image quality is still pretty good.

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Only at 6400 ISO does noise really become a deal-breaker.

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This is the full frame at 6400 ISO

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