Fujifilm XF 18-55mm F2.8-4 R LM OIS Review
Sharpness Cont... 2
Sharpness at 23mm
For these sharpness tests the Fujifilm 18-55mm lens was attached to a Fujifilm X-E1 body, which in turn was mounted on a sturdy tripod. Slight tonal changes are due to slight changes in natural light during the session.
The full frame at 23mm
At 23mm the centre is acceptably sharp at f/4, with peak performance achieved in the f/5.6-8 range. Diffraction sets in at around f/16, with its effects becoming more visible at f/22.
The edges are somewhat soft at f/2.8 but sharpen up very nicely at f/5.6, with f/8 the optimum setting.