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Canon Digital IXUS 900 Ti - 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 ISO setting has been reduced to let you see the full image, and below that 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 the minimum 80 ISO setting. Picture quality is very good, with fantastic fine detail. Look at the lettering on the small banner.
100 ISO. There is some colour mottling in the black areas, but nothing to worry about.
Virtually identical results at 200 ISO, and fine detail is still very good.
Slightly more noise at 400 ISO, but again the fine detail is preserved. Compare this with the results from the Pentax A30 to see two different ways of handling image noise.
Only at 800 ISO is some detail lost, but the banner is still readable which is impressive for a 10MP camera.
At 1600 ISO the image noise really kicks in, and a lot of fine detail is now lost.
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