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Canon IXUS 860 IS - 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.
This is a full-frame view of the minimum ISO setting.
At 80 ISO the image quality is pretty much perfect, with accurate colours, good detail and no noise at all.
Virtually no difference at 100 ISO.
There is a small amount of noise visible at 200 ISO, but not enough to worry about.
As usual with Canon cameras, the more damaging chromatic noise is well suppressed, leaving only a little grain-like luminance noise at 400 ISO.
Noise is a lot more noticeable at 800 ISO, but there is still a good level of detail and the shot is printable.
Image quality does break down somewhat at 1600 ISO, with visible colour distortion in the darker areas.
This is the full frame at 1600 ISO.
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