Viltrox AF 28mm F4.5 Chip L (L-Mount)

Testers of this optical design found a sharp centre that suits street and documentary work, but weaker borders and soft extreme corners that can't be improved because the aperture is fixed. Distortion is very low and lateral colour fringing is easy to fix, while vignetting is heavy at roughly 2.8 to 2.9 EV, sometimes with a bluish corner cast.

Autofocus is fast and silent, but there is no way to focus manually. Veiling flare from light sources just outside the frame can be severe, and the eight-ray sunstars from the front mask are long and irregular. Reviewers saw it as a fun, cheap pocket lens rather than a landscape tool; one called it his favourite full-frame pancake, while another rated its optics low.

Owners who commented like how small and unobtrusive it is for daytime street shooting.

The complaints are flare from street lights at night that ruined some shots, and one report of a camera freezing on shutter press with this lens attached. Both reports concern the Sony E version.