Canon Digital IXUS 970 IS - Test shots - ISO performance

A range of test shots are shown over the next few pages. Here, the full size images at the minimum and maximum ISO settings have been reduced for bandwidth purposes to let you see the full image, and a series of crops taken from original full resolution images at a range of ISO settings have been included in order for you to gain an appreciation of the overall quality.

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This is the full frame at 80 ISO.

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At the minimum ISO setting of 80 the image noise free and very smooth.

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Virtually no difference at 100 ISO,

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Still no real noise at 200 ISO.

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Some luminance noise at 400 ISO, but no colour distortion.

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Slightly more luminance noise at 800 ISO, but still no colour distortion. This would still make a decent print.

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Image quality is suddenly much worse at 1600 ISO, the maximum full-size setting.

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3200 ISO is available, but image size is reduced to just two megapixels. Pretty useless, but at least the colours are bright.

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This is the full frame at 1600 ISO.

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