Sharpness at 50mm

For this test, the Sony Planar T* FE 50mm F1.4 ZA lens was attached to a Sony A7R II 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 50mm

Centre sharpness is acceptable when shooting wide-open at f/1.4, very goodat f/2, and outstanding from f/2.8 onwards, with f/16 being adversely affected by diffraction. Commendably the edges are just as sharp as the centre, with f/2.8-f/11 again producing the sharpest results.

Aperture	Centre Crop	Edge Crop
f/1.4
f/2
f/2.8
f/4
f/5.6
f/8
f/11
f/16