Adobe (www.adobe.com) Adobe (Sigma DG 15mm f/2.8 EX) Canon Canon EOS-1Ds Mark III 15mm 32 5640.000000 3752.000000 15.000000 6.918863 Sigma DG 15mm f/2.8 EX Canon EOS-1Ds Mark III True 1.110696 0.995542 2 0.425496 0.425496 0.497745 0.494634 -0.025294 -0.003683 0.000260 0.000173 0.425415 0.425415 0.497755 0.494649 -0.025302 -0.003680 0.000257 0.000173 1.000190 0.425415 0.425415 0.497755 0.494649 0.000148 -0.000189 0.000165 0.000256 0.000172 1.000360 0.425415 0.425415 0.497755 0.494649 -0.000175 0.000195 -0.000159 0.000256 0.000172 0.425496 0.425496 0.497745 0.494634 -0.152215 -0.026783 0.013822 0.003793