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Olympus mju 830 - Test shots - ISO performance

A range of test shots are shown over the next few pages. Here, the full size images at the minimum and maximum ISO settings have 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 included in order for you to gain an appreciation of the overall quality.



In weather like this I can do my ISO shots outdoors. This is the full frame at 64 ISO.



As expected the image quality at 64 ISO is very good.



Trouble starts to appear even at 100 ISO, with colour mottling in darker areas and some mid-tone noise.



At 200 ISO there seems to have been a hiccup in the auto white balance system. There is also more visible noise, especially in the mid-tone areas.



Colour is back to normal, but at 400 ISO there is significant noise in all areas.



The level of detail drops dramatically at 800 ISO.



At the maximum 1600 ISO, the image quality is terrible, and only the brightest colours are recorded. What happened to green?



This is the full frame at 1600 ISO.


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