Sharpness at 135mm

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 135mm

At 135mm, sharpness is good wide open (f/6), being sharpest at f/8 and f/11. At f/16, it’s a little softer thanks to diffraction, while at f/22 it’s softer again. At the edges, the optimum sharpness can be seen at f/11.

Aperture	Centre Crop	Edge Crop
f/6
f/8
f/11
f/16
f/22