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Sigma 70-200mm f2.8 EX DG HSM

Test Results

Tested with Canon EOS 20D

Distortion

Some distortion was observed at both ends of the zoom range - more noticeable at 70mm
Canon 20D Sigma 70_200 2_8 EX DG _MG_3323_Rawshooter1 70 f2_8 full frame Canon 20D Sigma 70_200 2_8 EX DG _MG_3325_Rawshooter1 200 f2_8 full frame

    Full frame at 70mm                        Full frame at 200mm

100% crops
Sigma 70_200 2_8 DG__MG_5263 ctr mk202 Sigma 70 200 EX DG 2_8 _MG_5264 70 2_8 corner

Centre                  70mm f 2.8                corner
Sigma 70 200 EX DG 2_8 _MG_5274 70 5_6
Sigma 70 200 EX DG 2_8 _MG_5275 70 5_6 corner

Centre                  70mm f 5.6                corner
Sigma 70 200 EX DG 2_8 _MG_5266 135 2_8 corner
Sigma 70 200 EX DG 2_8 _MG_5265 135 2_8 ctr

Centre                  135mm f 2.8                corner
Sigma 70 200 EX DG 2_8 _MG_5272 135 5_6 ctr Sigma 70 200 EX DG 2_8 _MG_5273 135 5_6 corner

Centre                  135mm f 5.6                corner

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