Fast wide-angle prime lens for Fujifilm X APS-C mirrorless cameras.
The Sigma 23mm f/1.4 DC DN I Contemporary is an APS-C mirrorless prime from Sigma's I-series, designed specifically for mirrorless APS-C cameras. DC DN = APS-C mirrorless (not DSLR); I-series = compact all-metal construction; Contemporary = Sigma's quality/value tier. The 23mm gives 35mm equivalent on Fujifilm APS-C.
23mm focal length (35mm equivalent on Fujifilm APS-C), f/1.4 maximum aperture, DC DN (APS-C mirrorless), I-series all-metal construction, Fujifilm X mount, 52mm filter thread.
The Sigma I-series 23mm f/1.4 DC DN for Fujifilm X provides an affordable fast prime with excellent image quality in a compact all-metal body. The 35mm equivalent is highly versatile for street, travel, and environmental photography. The DC DN design is specifically optimised for mirrorless — shorter flange distance and improved AF compatibility.
Test AF accuracy and speed on Fujifilm X bodies. Inspect for haze, fungus, and coating condition. Confirm Fujifilm X mount engagement. Check aperture ring function and blades. Test at f/1.4 for sharpness and any coma.