Lenses tested at 50mm at f/2.8 or widest aperture setting with a Canon Digital Rebel XTi

ef-s17-55_f2.8.jpg	ef-s17-85_f5.6.jpg	ef-s18-55_f5.6.jpg
ef50-1.4_f2.8.jpg	ef50-1.8_f2.8.jpg	sigma_18-50_f2.8.jpg
tamron_17-55_f2.8.jpg