Sharpness

The sharpness tests for this review were carried out using a real-world subject rather than a test chart. The lens was attached to an Olympus E-450 body, which in turn was mounted on a sturdy tripod. Slight colour changes are due to slight changes in natural light during the session. The 100% crops represent about 1/250th of the total frame area.

The full frame

Aperture	Centre Crop	Edge Crop
f/2
f/2.8
f/4
f/5.6
f/8
f/11
f/16
f/22