Sample Images: Canon EF 400mm f/2.8L IS II USMSample Images: Canon EF 400mm f/2.8L IS II USM(All images copyright Photography Online, Inc.)
Still Life tests, Canon 7D body (sub-frame sensor)
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Still Life tests, Canon 1Ds Mk III body (full-frame sensor)
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VFA Target, Canon 7D body (sub-frame sensor)
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| 400mm f/2.8 | |
 Upper Left |  Center |
| 400mm f/8 | |
 Upper Left |  Center |
VFA Target, Canon 1Ds Mk III body (full-frame sensor)
| 400mm f/2.8 | |
 Upper Left |  Center |
| 400mm f/8 | |
 Upper Left |  Center |