The purpose of this test of exercise was to determine the difference in image quality produced by these 2 lenses especially when used with a full-frame DSLR with relatively high mega-pixel count.

Unless stated otherwise, the images were shot with a Canon EOS 1Ds Mark.II on Aperture Priority mode, metered using spot meter on the same spot for all shots of the series. Camera was tripod mounted and all shots were taken with a 10sec timer.

All images were shot in RAW and processed using default parameters on Adobe Lightroom 1.4.2 to approximate how images are produced and processed by a working photographer. Continue reading →