Resolution Chart Comparison

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.

Canon EOS 30D (2,409 KB; 8.2 MP)	Nikon D200 (2,728 KB; 10.0 MP)
Canon EOS 5D (3,552 KB; 12.8 MP)	Canon EOS 20D (2,415 KB; 8.2 MP)

Canon EOS 30D	Nikon D200
Canon EOS 5D	Canon EOS 20D

Canon EOS 30D	Nikon D200
Canon EOS 5D	Canon EOS 20D

Canon EOS 30D	Nikon D200
Canon EOS 5D	Canon EOS 20D

Measurable findings (three measurements taken for each camera):

No surprises, the same sensor, the same image processor and we get exactly the same results, the same absolute and extinction resolution and even the same 'type' of moire effect. As we noted previously the jump from eight to ten megapixels doesn't account for a huge leap of resolution, eight to (almost) thirteen does.