Canon PowerShot SX30 IS - Test shots: ISO performance

"A selection of images taken at the camera's incremental light sensitivity settings, using only available daylight."
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Full frame at ISO80 - starting out lower than most - and, unsurprisingly, all is well with the IXUS SX30 IS's performance

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Same shot at ISO100 and no discernible difference

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Same lack of noise to report at ISO200, so the camera is performing as we would expect at this level

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We're at ISO400, usually the setting at which noise begins to creep in on if we're unlucky. Here we're just starting to lose definition in the shadow areas upon close inspection, but only very slightly so.

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Noise is becoming more pronounced when examining shadow detail at ISO800, but overall the image is still fairly clean

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At ISO1600 we're noticing even more softness and graining but this option has still provided a perfectly usable result, suggesting Canon was perhaps being conservative in capping its ISO here

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...And so we've tried shooting our test image with Low Light mode selected, which effects an image drop to three megapixels. Here the camera has itself chosen a setting which equates to ISO500, so again, no apparent noise.

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The full frame in Low light mode.