Laowa 11mm f/4.5 FF RL

Reviewers report good corner sharpness and contrast from f/5.6, with the best overall results around f/8. There is a slight mid-zone dip at wider apertures, and borders suffer from field curvature near minimum focus.

Vignetting is heavy at about 3 EV wide open and barely improves when stopped down, and there is a slight green corner cast on Sony bodies. Distortion is noticeable and wavy, flare resistance is average, and there are no electronic contacts.

Owners value how small it is: it fits in a jacket pocket and balances well on compact bodies. The 62mm filter thread is a major reason people pick it over the 9mm or 10-18mm, and the build draws praise.

The fixed hood makes rotating polarisers awkward, the aperture click stops are unevenly spaced, and the lack of EXIF annoys users who rely on automatic lens profiles.