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Canon PowerShot A570 IS - Test shots - ISO performance

By Cliff Smith


  • Recommended by TR
Canon PowerShot A570 IS


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A range of test shots are shown over the next few pages. Here, the full size image at the minimum ISO setting has been reduced for bandwidth purposes to let you see the full image, and a series of crops taken from original full resolution images at a range of ISO settings have been placed below it in order for you to gain an appreciation of the overall quality.



At the minimum 80 ISO the image is nice and clear, with excellent colour, contrast and detail.


Still nice and clear at 100 ISO.


There is some slight colour speckling in the darker areas at 200 ISO, but detail is still good.


Noise is visible all across the image and 400 ISO, but overall detail is still quite good.


At 800 ISO there is a sudden drop off in image quality, and the noise level is now much worse.


At 1600 ISO image quality is now very poor and the image would not make a good print even at snapshot size.


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