Compact wide-angle prime lens for full-frame mirrorless cameras.
The Sigma 24mm f/2 DG DN I Contemporary is part of Sigma's I-series (compact, all-metal prime line) for mirrorless systems. DG DN indicates full-frame mirrorless; I = compact metal construction. Released in 2022, it features a fast f/2 aperture in an unusually compact format for a full-frame 24mm prime.
24mm focal length, f/2 maximum aperture, DG DN (full-frame mirrorless), I-series all-metal construction, Sony FE mount, 62mm filter thread, 9-blade aperture.
The Sigma I-series 24mm f/2 combines the quality of Sigma's Art line with the compact metal aesthetics of the I-series. The f/2 aperture is one stop slower than a 24mm f/1.4 but in a dramatically smaller and lighter package. An excellent landscape, travel, and documentary prime for Sony full-frame mirrorless shooters.
Inspect for fungus, haze, and coating condition. Test the focus ring for smooth operation. Confirm Sony FE mount engagement. Check aperture ring function (I-series has a clickable/de-clickable aperture ring). Test at f/2 for corner performance and sharpness.