Viltrox AF 20mm F2.8 Air FE

Reviewers treat it as a budget lens that does the basics well. The centre is sharp from f/2.8, while the edges and extreme corners need f/5.6 to f/8 to catch up. Barrel distortion and vignetting are strong without correction, and the lens relies on camera or raw-converter profiles to clean them up.

Autofocus is quiet and accurate enough for video and general use, though not as quick as Sony's linear-motor primes. Flare resistance is average and sunstars from the seven-blade aperture are acceptable. Most reviewers conclude that the size, weight and price outweigh the optical compromises, particularly on small bodies like the ZV-E1 or A7C series.

Owners mostly buy it as a walk-around or vlogging lens for compact bodies and say it nearly disappears on the camera. The close-focus distance and the low price get frequent praise, and the white version is popular with ZV-E10 and A7C owners.

Complaints focus on soft corners for landscape work, vignetting at f/2.8 and the plastic-feeling hood. Some users note f/2.8 is limiting for astrophotography compared with faster 20mm lenses.