Viltrox AF 14mm F4.0 Air Z

Reviewers found it surprisingly sharp for $199, with an excellent centre and very good outer field already at f/4, and low field curvature. Lateral CA is low, raw distortion is mild, and sunstars become well defined from f/8 onwards.

The compromises are vignetting of about 3 EV at f/4 that barely improves on stopping down, a correction profile that doesn't fully clean up distortion, and an aperture too slow for serious astrophotography. Build is consumer-grade plastic, but testers considered it a value pick for anyone who doesn't need speed.

Owners use it as a travel, interior and vlogging lens that disappears in a bag, and on Nikon Z it is far smaller and cheaper than the NIKKOR Z 14-24mm or 14-30mm zooms. The filter thread, light weight and close focus come up most often, along with how well it balances on gimbals.

The common complaints are strong corner darkening, the slow f/4 aperture for night skies, and the plastic feel.