(All images copyright Photography Online, Inc.)

Still Life tests, Canon 20D body (sub-frame sensor)

18mm f/3.5	18mm f/8
80mm f/5.6	80mm f/8
250mm f/6.3	250mm f/8

VFA Target, Canon 20D body (sub-frame sensor)

18mm f/3.5
Upper Left	Center
18mm f/8
Upper Left	Center
80mm f/5.6
Upper Left	Center
80mm f/8
Upper Left	Center
250mm f/6.3
Upper Left	Center
250mm f/8
Upper Left	Center