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Canon EOS 40D - 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.
This is the full frame at 100 ISO. Note the black spot on the left side of the frame; this was caused by dust inside the lens. The following shots were taken in JPEG-only mode with default settings.
At 100 ISO the image quality is pretty much perfect.
Virtually identical results at 200 ISO.
A tiny amount of fine-grained noise at 400 ISO, but no significant impact on image quality.
800 ISO and still only a slight smattering of noise.
At the maximum normal setting of 1600 ISO there is some noise visible, but colour reproduction is still exceptionally good.
This is the full frame at 1600 ISO. Click to download the full size photo.
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