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Resolution Chart Comparison (JPEG)Shots here are of our 'version two' resolution chart which provides for measurement of resolution up to 4000 LPH (Lines Per Picture Height). A value of 20 equates to 2000 lines per picture height. For each camera the relevant prime lens was used. The chart is shot at a full range of apertures and the sharpest image selected. Studio light, cameras set to aperture priority (optimum aperture selected), image parameters default. Exposure compensation set to deliver approximately 80% luminance of white area.
Measurable results
The Canon EOS 7D makes the most out of its 18 MP sensor and delivers the highest resolution that we have so far seen on an APS-C DSLR. There are some signs of moire at very high frequencies but it outresolves all other cameras in this comparison in terms of both absolute and extinction resolution. However, when looking at these results it has to be considered that they, like in all our studio tests, have been achieved with stopped down prime lenses. In most real-life situations you would struggle to get the same amount of resolution in your images. |
