As part of our image quality testing for the Canon EOS 5D MK III we've shot our resolution chart.
If you view our crops of the resolution chart's central section at 100% (or Actual Pixels) you will see that, for example, at ISO 100 the 5D MK III is capable of resolving up to around 28 (line widths per picture height x100) in its highest quality JPEG files.
See a full explanation of what our resolution charts mean, and how to read them.
Examining images of the chart taken at each sensitivity setting reveals the following resolution scores in line widths per picture height x100:
ISO 100
JPEG images
ISO 100, score: 24 (Click here to see full-resolution image)
ISO 200, score: 24 (Click here to see full-resolution image)
ISO 400, score: 24 (Click here to see full-resolution image)
ISO 800, score: 22 (Click here to see full-resolution image)
ISO 1600, score: 20 (Click here to see full-resolution image)
ISO 3200, score: 20 Click here to see full-resolution image
ISO 6400, score: 18 Click here to see full-resolution image
ISO 12800, score: 16 Click here to see full-resolution image
ISO 25600, score: 12 Click here to see full-resolution image
Raw images
ISO 100, score: 24 Click here to see full-resolution image
ISO 200, score: 24 Click here to see full-resolution image
ISO 400, score: 24 Click here to see full-resolution image
ISO 800, score: 22 Click here to see full-resolution image
ISO 1600, score: 20 Click here to see full-resolution image
ISO 3200, score: 20 Click here to see full-resolution image
ISO 6400, score: 20 Click here to see full-resolution image
ISO 12800, score: 16 Click here to see full-resolution image
ISO 25600, score: 12 Click here to see full-resolution image
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