Very good94/100
All in all, the Sigma 2.8/16-28 mm DG DN C is recommendable as a wide-angle zoom on both bayonets. It can be used well when open, albeit with moderate weaknesses at the edges of the frame.
The lens is specifically designed for full-frame cameras with a Sony E-mount connection.
The 16-28mm focal length enables the capture of expansive scenes for landscape and architectural photography.
The internal zoom mechanism maintains a constant lens length across the entire focal range, thereby facilitating easier handling on a gimbal.