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The 28-70mm f/2.8 DG DN Contemporary Lens for Sony E-Mount from Sigma is a versatile wide-angle to portrait-length zoom characterized by its f/2.8 constant maximum aperture. The design suits working in available lighting conditions while affording increased control over depth of field.
The 28-70mm f/2.8 DG DN Contemporary Lens for Sony E-Mount from Sigma is a versatile zoom lens covering wide-angle to portrait focal lengths, featuring a constant f/2.8 maximum aperture. Its compact and lightweight design makes it ideal for working in various lighting conditions while maintaining excellent control over depth of field.
The optical construction includes two FLD and two SLD low-dispersion elements, along with three aspherical elements, effectively reducing aberrations and delivering high sharpness, clarity, and accurate color reproduction. A single lightweight focusing element keeps the autofocus unit compact, while the stepping motor ensures fast, quiet, and precise performance—perfect for both photography and video use.
Super Multi-Layer and Nano Porous coatings minimize flare and ghosting, improving contrast and light transmission. The front element features a water- and oil-repellent coating for easier maintenance. The weather-sealed design enhances reliability in demanding conditions, and the rounded nine-blade diaphragm produces smooth and pleasing bokeh.
| Focal Length | 28 to 70mm |
| Aperture | Maximum: f/2.8 | Minimum: f/22 |
| Lens Mount | Sony E |
| Lens Format Coverage | Full-Frame |
| Angle of View | 75.4° to 34.3° |
| Minimum Focus Distance | 7.5" / 19 cm |
| Magnification | 1:4.6 Macro Reproduction Ratio (0.21x Magnification) |
| Optical Design | 16 Elements in 12 Groups |
| Aperture/Iris Blades | 9, Rounded |
| Focus Type | Autofocus |
| Image Stabilization | No |
| Filter Size | 67 mm (Front) |
| Dimensions (ø x L) | 2.8 x 4" / 72.2 x 101.5 mm |
| Weight | 16.6 oz / 470 g |
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