Canon IXUS 860 IS - Test shots – ISO performance

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”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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This is a full-frame view of the minimum ISO setting.


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At 80 ISO the image quality is pretty much perfect, with accurate colours, good detail and no noise at all.


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Virtually no difference at 100 ISO.


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There is a small amount of noise visible at 200 ISO, but not enough to worry about.


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As usual with Canon cameras, the more damaging chromatic noise is well suppressed, leaving only a little grain-like luminance noise at 400 ISO.


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Noise is a lot more noticeable at 800 ISO, but there is still a good level of detail and the shot is printable.


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Image quality does break down somewhat at 1600 ISO, with visible colour distortion in the darker areas.


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This is the full frame at 1600 ISO.


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