Sharpness

Sharpness

Centre sharpness is excellent. Inevitably for a wideangle, corner sharpness is less impressive, as the lens has to be positioned very close to our test chart.

Fringing

0.43

Fringing is well-controlled at 10mm at all apertures, and only becomes barely visible as you zoom in to 14mm and 18mm.

Distortion

-0.64

With just a touch of barrel distortion, the Zero-D lives up to its name. It’s not an Olympus lens, so we assume there isn’t any in-camera distortion correction.