The Sigma 28-70mm f/2.8 DG DN | Contemporary redefines the "everyday" zoom. By prioritizing portability without sacrificing professional image quality, Sigma has created a lens that offers high resolution across the entire frame. Its optical design features two FLD (F Low Dispersion) and two SLD (Special Low Dispersion) elements to correct chromatic aberrations, alongside three aspherical elements that ensure sharpness from edge to edge. Designed for hybrid creators, the lens features a fast and near-silent stepping motor that is fully compatible with Sony’s advanced Face and Eye-Detection AF. The lens is built with Thermally Stable Composite (TSC), a material that matches the thermal shrinkage of aluminum, ensuring consistent performance in varying temperatures while keeping the build lightweight. With Nano Porous and Super Multi-Layer coatings to minimize flare and a water/oil-repellent front element, this lens is ready for diverse shooting environments. Its impressive minimum focus distance of just 19cm at the wide end allows for creative close-up work with beautiful subject separation.
Technical Specifications
Mount Type: Sony E-Mount (Full-Frame)
Format: Full-Frame (APS-C compatible, 42–105mm equivalent)
Focal Length: 28–70mm
Maximum Aperture: f/2.8 (Constant)
Minimum Aperture: f/22
Lens Construction: 16 elements in 12 groups (including 2 FLD, 2 SLD, and 3 aspherical elements)
Angle of View: 75.4° to 34.3°
Focusing System: Stepping Motor (STM) with Internal Focus
Image Stabilizer: None (Relies on camera IBIS)
Minimum Focus Distance: 19 cm (Wide) to 38 cm (Tele)
Maximum Magnification: 1:3.3 (Wide) to 1:4.6 (Tele)
Diaphragm Blades: 9 (rounded)
Coating: Nano Porous Coating (NPC) and Super Multi-Layer Coating
Filter Attachment Size: 67 mm
Dimensions: Approx. 72.2 mm x 103.5 mm (2.8 in. x 4.1 in.)
Weight: Approx. 470 g (16.6 oz)
In the Box:
Sigma AF 28-70mm F2.8 DG DN Contemporary Lens for Sony E
Petal-Type Lens Hood
Front Lens Cap
Rear Lens Cap
User Manual