Summary

Our Score

7/10

User Score

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Pentax Optio M40 - 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.

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/94/a58d59/a84c/5840-PentaxM40ISOmin.jpg

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/94/621d86/ce92/5840-PentaxM40ISO50.jpg

Image quality at the minimum 50 ISO is very good, with no noise and plenty of fine detail.

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/94/25fcc8/46b6/5840-PentaxM40ISO100.jpg

Image quality is still good at 100 ISO, although there is a tiny amount of colour speckling in the darker areas.

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/94/73edf9/2d56/5840-PentaxM40ISO200.jpg

Still no major problems at 200 ISO.

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/94/3dbf8c/49a0/5840-PentaxM40ISO400.jpg

Noise is starting to reduce image quality at 400 ISO but the level of fine detail is still good.

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/94/0998b3/ccae/5840-PentaxM40ISO800.jpg

Even at 800 ISO this would look OK in a small print.

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/94/1a42c7/347e/5840-PentaxM40ISO1600.jpg

The M40's maximum 3200 ISO is higher than average, but image quality at this setting is low.

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/94/bdb248/2b52/5840-PentaxM40ISOmax.jpg

The image is quite noisy at 1600 ISO, but I've seen lots worse.

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/94/abe07d/0493/5840-PentaxM40ISO3200.jpg

This is the full-frame image at 3200 ISO.

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