Olympus SP-550UZ Review - Test shots – ISO performance Review

”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.”


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At the minimum 50 ISO the image is sharp and clear.


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Still good at 100 ISO


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Up another stop to 200 ISO, and already there is a trace of image noise visible as speckles of red and green in the blue area.


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At 400 ISO the image is now quite noisy, enough to show up on even a small print.


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At 800 ISO the image is now badly affected by noise.


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At 1600 ISO the image is so bad it is now completely unsuable.


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For 3200 ISO the camera automatically selects a lower quality setting, which seems to help reduce the noise, but the loss of quality is drastic.


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The very high maximum ISO setting of 5000 is really unusable except under extreme circumstances.


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