Sample Images: Sigma 17-70mm f/2.8-4 DC Macro OS HSM \"C\"Sample Images: Sigma 17-70mm f/2.8-4 DC Macro OS HSM \"C\"(All images copyright Photography Online, Inc.)
Still Life tests, Canon 7D body (sub-frame sensor)
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VFA Target, Canon 7D body (sub-frame sensor)
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| 17mm f/2.8 | |
 Upper Left |  Center |
| 17mm f/8 | |
 Upper Left |  Center |
| 35mm f/3.5 | |
 Upper Left |  Center |
| 35mm f/8 | |
 Upper Left |  Center |
| 70mm f/4 | |
 Upper Left |  Center |
| 70mm f/8 | |
 Upper Left |  Center |