Samyang AF 24mm F2.8 FE

Reviews describe good to very good centre sharpness from f/2.8 and corners that stay noticeably softer until about f/8. Vignetting and barrel distortion are fairly strong in uncorrected files, though camera and raw profiles handle them. Flare control is average, with some ghosting against strong light sources.

Autofocus is quiet and accurate but not fast, and the plastic build and by-wire focus ring feel basic. The usual conclusion is that it is an easy recommendation for anyone who prioritises size and price, while Sony's own small primes and faster third-party 24mm lenses are better optically.

Owners like it as a body-cap-sized walkaround lens for the a7 series and gimbal setups, and often pair it with the AF 35mm F2.8 FE. Its low price and weight make it a common second lens.

Common complaints are soft corners for landscapes, heavy vignetting wide open, and occasional AF hesitation in dim light. Some users say early firmware needed updating to work properly with newer bodies.