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.

Canon EOS 500D (4.4MB, 15.1 MP)	Nikon D5000 (3.5 MB; 12.3 MP)
Olympus E-620 (6.4 MB, 12.3 MP)	Canon EOS 450D (2.6 MB, 12.2 MP)

Canon EOS 500D	Nikon D5000
Olympus E-620	Canon EOS 450D

Canon EOS 500D	Nikon D5000
Olympus E-620	Canon EOS 450D

Canon EOS 500D	Nikon D5000
Olympus E-620	Canon EOS 450D

Measurable results

The results of this resolution test are in line with what we've seen on the previous studio scene comparison pages: the EOS 500D's nominal advantage in resolution (i.e. megapixels) over its predecessor only results in a very marginal increase of measured resolution. The JPEG output of both the Nikon and Olympus can't quite match the Canons in this test. All cameras show at least mild signs of moire.