Tamron 11-20mm F2.8 Di III-A RXD Review
Sharpness at 20mm
Our sharpness tests are carried out by photographing a real-world subject rather than a test chart. The Tamron 11-20mm F2.8 Di III-A RXD was attached to a Sony A6000 camera, which in turn was mounted on a sturdy tripod. Self-timer mode was activated to steady the camera completely. Any slight tonal changes you may see across the crops are a result of slight changes in natural light during the shooting session.
The full frame at 20mm
Centre sharpness at f/2.8 is a little soft, but it's impressively high through from f/4-f/11, with f/16 being affected by diffraction.
The edges aren't quite as sharp as the centre, with f/5.6-f/11 producing the sharpest results.
|Aperture||Centre Crop||Edge Crop|