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.
We've repeatedly seen that the default output from the from the D5000 is a touch soft and this duly impacts on the resolution figures, with soft gray transitions between lines prompting us to call the resolution limits relatively early. That said, the D5000 still manages to do well against the E-620, which has a similar number of pixels (albeit arranged in a different aspect ratio, so that it offers greater nominal vertical resolution).