Pentax X90 - 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 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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The image quality at the new 80 ISO minimum sensitivity is very good.

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Still no problems at 100 ISO.

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Still noting to worry about at 200 ISO.

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Noise reduction has blurred some detail at 400 ISO.

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Image quality is greatly reduced at 800 ISO.

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Lots of image noise at 1600 ISO.

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3200 ISO is available at 5MP.

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6400 ISO is also available at 5MP, but it looks like a cheap webcam.

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This is the full frame at maximum ISO.

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