Olympus M.ZUIKO Digital 40-150mm f/2.8 Pro Review

January 28, 2015 | Zoltan Arva-Toth |

Sharpness at 70mm

For these tests, the Olympus M.ZUIKO Digital 40-150mm f/2.8 ED Pro lens was attached to an Olympus E-M5 body, which in turn was mounted on a sturdy tripod. The self-timer was activated. The 100% crops represent about 1/400th of the total frame area.

The full frameThe full frame at 70mm

Sharpness at 70mm is very high wide open, and peaks at f/5.6. The f/8 and f11 settings are also usable without serious restrictions, but once again diffraction severely impacts resolution at f16 and f22. Sharpness uniformity across the frame is excellent.

Aperture Centre Crop Edge Crop
f/2.8 f2.8.jpg f2.8.jpg
f/4 f4.jpg f4.jpg
f/5.6 f5.6.jpg f5.6.jpg
f/8 f8.jpg f8.jpg
f/11 f11.jpg f11.jpg
f/16 f16.jpg f16.jpg
f/22 f22.jpg f22.jpg