Sharpness at 240mm

For this test, the Sony FE 24-240mm f/3.5-6.3 OSS lens was attached to a Sony A7S body, which in turn was mounted on a sturdy tripod. Exposure delay mode was activated. Tonal and colour variances across the crops are due to changes in natural light during the session.

The full frame at 240mm

Centre sharpness remains high through from f/6.3 to f/22, with f/32 to f/40 being adversely affected by diffraction. The edges aren't as sharp as the centre, with f/11-22 producing the sharpest results.

Aperture	Centre Crop	Edge Crop
f/6.3
f/8
f/11
f/16
f/22
f/32
f/40