Sharpness at 230mm

For this review, the sharpness test is carried out by photographing a real-world sample, rather than a test chart. The Fujifilm XC 50-230mm f/4.5-6.7 OIS II was mounted on a Fuji X-A3, which was in-turn mounted on a sturdy tripod. Exposure delay was activated to prevent camera-shake. Any changes in tone you might see across the crops are due to natural light changes during the shooting session.

The full frame at 230mm

At 230mm, sharpness is good wide open (f/6.7), but is best between f/8 and f/11. There is some softness at f/16 due to diffraction, while it is softer again at f/22. At the edge, optimum sharpness can be seen at f/11.

Aperture	Centre Crop	Edge Crop
f/6.7
f/8
f/11
f/16
f/22