Are the figures comparable between cameras or different systems ?
It depends on the similarities between the image sensor system. A sensor SYSTEM contains the image sensor with or without micro-lenses, an IR filter, a low-pass (Moire) filter and the signal processing. As you can imagine the output quality is largely dependent on the whole chain on not just on the amount of megapixels. The different output quality between the Canon EOS 350D and the Olympus E-300 is a good example (despite a 8MP sensor). The tests are a good guidance for the lens quality as long as you compare the results WITHIN a test group (e.g. Canon). Here’re a few tendencies: • the Pentax results are a bit steeper (sharper and softer results are more pronounced). The tangentially resolution is a bit favored due to the extremely weak vertical AA filter. • the Canon results tend to be a bit better at the extreme borders due to the smaller sensor • the Olympus results are comparatively weak due to the aggressive AA filter on the E-300 Q: Why are the quality ratings different from sys
