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

The Sigma 12-24mm f/4 DG HSM Art is built to deliver "prime-lens" quality at every focal length. To achieve this, Sigma utilized their most advanced glass-molding technology, including a massive 80mm aspherical front element—one of the largest in the industry—which is key to suppressing the distortion typically seen at ultra-wide angles. Combined with FLD (F Low Dispersion) glass elements, which perform similarly to fluorite, the lens maintains incredible edge-to-edge sharpness and eliminates color fringing. For Nikon users, this lens features an electromagnetic diaphragm mechanism, ensuring highly stable auto-exposure control even during high-speed continuous shooting. The Hyper Sonic Motor (HSM) has been updated with 1.3x more torque than previous models, providing snappy and quiet autofocus. The lens is housed in a rugged, weather-sealed barrel made of Thermally Stable Composite (TSC), and the front bulbous element is protected by a water- and oil-repellent coating. This is a heavy-duty, professional-grade instrument designed for those who need to fit the entire world into a single frame.

Technical Specifications
Mount Type: Nikon F (Full-Frame)
Focal Length: 12–24mm
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)
Special Electronics: Electromagnetic Diaphragm (Nikon)
Filter Attachment: No front filter thread (Bulbous element)
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 Nikon
Cover-Type Front Lens Cap
Rear Lens Cap
Integrated Petal-Type Lens Hood
Padded Soft Carrying Case
Shoulder Strap
User Manual