Pentax Optio S12 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.”


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This is a full-frame image at the minimum sensitivity of 64 ISO.


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At 64 ISO the image quality is very good, with no noise problems, although the green saturation could be higher.


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Still no major issues at 100 ISO.


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Noise is visible at 200 ISO, but the image is still perfectly usable.


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There is a noticeable drop in image quality at 400 ISO as the noise reduction system goes to work.


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All fine detail is lost at 800 ISO, and the image looks blurred.


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Image quality is very poor at 1600 ISO, and this setting is best avoided.


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This is the full frame at 1600 ISO.


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