Sharpness

The sharpness tests for this review were carried out using a real-world subject rather than a test chart. The Fujifilm WCL-X100 lens was attached to a Fujifilm X100, which in turn was mounted on a sturdy tripod. The self-timer was activated to avoid camera-shake. Slight tonal changes are due to slight changes in natural light during the session.

The full frame at 28mm

Sharpness is poor wide open at f/2, much improved at f/2.8, and excellent between f/4 and f/11. At f/16, sharpness is still high, although lens contrast is slightly lower than at the other settings.

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