Ultra-fast full-frame prime lens for mirrorless cameras, part of Sigma's Art line.
The Sigma 50mm f/1.2 DG DN Art is a professional fast standard prime from Sigma's Art line for full-frame mirrorless cameras, designed to deliver exceptional optical performance at f/1.2 — one of the fastest standard primes in production. DG DN indicates the mirrorless-native design; Art indicates Sigma's highest optical quality tier. Released in 2022 for Sony FE and L-Mount systems.
50mm focal length, f/1.2 maximum aperture, DG DN (full-frame mirrorless design), Art-tier optical quality, Sony FE mount, 72mm filter thread, 11-blade aperture, clickable/de-clickable aperture ring.
The 50mm f/1.2 DG DN Art delivers Art-tier optical performance at f/1.2 — the maximum aperture where this lens class differentiates itself most sharply. Bokeh rendering is smooth with minimal coma at wide apertures, and field uniformity is excellent for a f/1.2 design. The de-clickable aperture ring enables smooth video exposure transitions. Related: id=1108 Sigma 50mm f/1.2 DG DN Art (L-Mount) — same optical formula, different mount.
Test performance at f/1.2 specifically — this is the aperture where this lens's optical quality is most distinctive. Check the clickable/de-clickable aperture ring mechanism. Inspect for any optical defects. Confirm Sony FE mount engagement. Note: the canonical name includes an 'I' designation; this may reflect a variant designation or data entry inconsistency — verify against current Sigma product specifications.