Resolution Chart Comparison EOS 5D Mark II vs EOS-1Ds Mark III
Shots here are of our new '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 +0.7 EV to +1.3 EV.
From the crops on the previous pages, we could predict the results of this comparison. These two full frame Canon cameras with 21 megapixel sensors produce the same amount of resolution on our test chart.
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On the resolution chart, the Sony A900 shows the value of all those pixels in pure resolution terms, and is still the highest resolution DSLR we have ever tested. The 5D Mark II comes in a very close equal second (with the 1Ds Mark III). In truth there's no practical difference in the resolving power of these three cameras, though there are slight differences in the 'per pixel' sharpness and the amount of sharpening applied to JPEGs.
Given that the 5D Mark II 's high ISO performance - seen elsewhere in this review - is almost as good as the D700, and visibly better than the A900, the 5D Mark II offers a combination of resolution, sharpness and ISO performance that is hard to beat.
