Very good90/100
- Very good resolution
- Little vignetting, hardly any distortion
- Very good price-performance ratio
- Housing without switches and buttons
The resolution is best in the wide-angle range. Measured on the Sony Alpha 6600, the Sigma achieved 1,952 line pairs per image height in the image centre. The performance decreases somewhat with increasing focal length. Vignetting is about the same across the focal length range at 0.6 to 0.7 stops...