Sigma AF 12-24mm F4 DG HSM ART Lens for Canon EF

Push the boundaries of space with the Sigma 12-24mm f/4 DG HSM Art. Built for the era of ultra-high-resolution sensors, this lens features an ambitious optical design that includes an 80mm large-diameter molded glass aspherical element—the largest in its class. This, combined with FLD (F Low Dispersion) glass, ensures surgical sharpness from the center to the extreme edges while virtually eliminating chromatic aberration and coma flare. The lens is driven by a newly designed Hyper Sonic Motor (HSM), offering 1.3x the torque of its predecessor for near-instant and silent autofocus. Despite its massive glass elements, it is built with Thermally Stable Composite (TSC) material, ensuring precision and durability across a wide range of temperatures. For architectural work, its world-class distortion control ensures that straight lines stay straight, even at the 12mm wide end. The lens is also designed with a dust- and splash-proof mount and a water/oil-repellent coating on the front and rear elements, making it a rugged choice for demanding professional environments.

Technical Specifications
Mount Type: Canon EF (Full-Frame)
Focal Length: 12–24mm (19.2–38.4mm equivalent on APS-C)
Maximum Aperture: f/4 (Constant)
Minimum Aperture: f/22
Lens Construction: 16 elements in 11 groups (including 5 FLD and 1 SLD element)
Angle of View: 122.0° to 84.1°
Focusing System: Hyper Sonic Motor (HSM) with Full-time Manual Override
Image Stabilizer: No
Minimum Focus Distance: 0.24 m (9.4 in) at the 24mm end
Maximum Magnification: 0.2x (1:4.9)
Diaphragm Blades: 9 (rounded)
Coating: Super Multi-Layer Coating, Water and Oil Repellent coating
Filter Attachment: None (Bulbous front element; requires specialized external systems)
Dimensions: Approx. 102 mm x 131.5 mm (4.0 in. x 5.2 in.)
Weight: Approx. 1,150 g (40.6 oz)

In the Box:
Sigma AF 12-24mm F4 DG HSM ART Lens for Canon EF
Cover-Type Front Lens Cap
Rear Lens Cap
Built-in Petal-Type Lens Hood
Padded Soft Carrying Case
Shoulder Strap
User Manual