Canon PowerShot A490 Review - Test Shots – ISO Performance Review

”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. These pictures were taken indoors using shaded natural light. ”


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This is the full frame at minimum ISO.


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Image quality at 80 ISO is pretty good.


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There is a trace of colour mottling even at 100 ISO.


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Noise is clearly visible at 200 ISO.


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Noise reduction has removed some of the chromatic noise at 400 ISO, but the image still have luminance noise.


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Noise reduction has reduce image quality at 800 ISO.


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Image quality is quite poor at the maximum 1600 ISO.


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This is the full frame at 1600 ISO.


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