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As part of our review process we've implemented a new testing procedure. To test the Sony Alpha A55 image quality, we shot our resolution chart, each with the Sony 18-55mm f/3.5-5.6 DT SAM kit lens.
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 Sony Alpha A55 is capable of resolving up to 26 (line widths per picture height x100) in its highest quality JPEG files. Examining images of the chart taken at each sensitivity setting reveals the following resolution scores in line widths per picture height x100:
Sony A55 Review: 0.4secs at f/8, ISO 100
JPEGs
Sony A55 Review: ISO 100 – 26 (Click to view full size)
Sony A55 Review: ISO 200 – 26 (Click to view full size)
Sony A55 Review: ISO 400 – 26 (Click to view full size)
Sony A55 Review: ISO 800 – 24 (Click to view full size)
Sony A55 Review: ISO 1600 – 22 (Click to view full size)
Sony A55 Review: ISO 3200 – 20 (Click to view full size)
Sony A55 Review: ISO 6400 – 18 (Click to view full size)
Sony A55 Review: ISO 12,800 – 18 (Click to view full size)
Raw files
Sony A55 Review: ISO 100 – 26 (Click to view full size)
Sony A55 Review: ISO 200 – 26 (Click to view full size)
Sony A55 Review: ISO 400 – 26 (Click to view full size)
Sony A55 Review: ISO 800 – 24 (Click to view full size)
Sony A55 Review: ISO 1600 – 24 (Click to view full size)
Sony A55 Review: ISO 3200 – 22 (Click to view full size)
Sony A55 Review: ISO 6400 – 20 (Click to view full size)
Sony A55 Review: ISO 12,800 – 20 (Click to view full size)
