Sigma 28-70mm f/2.8 DG DN Contemporary Lens (Sony E)
The Sigma 28-70mm f/2.8 DG DN Contemporary redefines the standard zoom by prioritizing a compact, lightweight form factor without sacrificing professional-grade optical performance. By starting the focal range at 28mm, Sigma has engineered a constant f/2.8 aperture lens that is significantly smaller and easier to handle than traditional 24-70mm optics. This makes it an exceptional choice for daily photography, travel, and filmmakers who require a high-performance lens that remains perfectly balanced on a gimbal or handheld rig.
Exceptional Optics in a Compact Build
Constant f/2.8 Aperture: Maintain a bright maximum aperture throughout the entire zoom range. This ensures consistent exposures in low-light environments and provides beautiful, shallow depth-of-field control for subject isolation.
Advanced Low-Dispersion Glass: The optical formula includes two FLD and two SLD elements, which work aggressively to eliminate chromatic aberrations and color fringing for superior clarity.
Aspherical Precision: Three aspherical elements are utilized to correct spherical aberrations and distortion, ensuring sharp, accurate rendering from the center to the edges of the frame.
Premium Coatings: Features Sigma’s Super Multi-Layer and Nano Porous coatings to suppress flare and ghosting, resulting in high-contrast imagery even in backlit situations. A water- and oil-repellent coating on the front element helps keep the glass clear of smudges and droplets.
Fast, Silent, and Reliable
Responsive Stepping Motor: Equipped with a quiet, high-speed stepping motor and optimized AF algorithms, the lens provides near-silent autofocus. This is a critical advantage for video creators and street photographers who need to remain inconspicuous.
Macro-Capable Close Focusing: Capture stunning detail with a minimum focusing distance of just 7.5″ at the wide end (1:3.3 magnification), allowing for unique close-up perspectives with smooth background blur.
Professional Durability: The lens features a high-precision brass bayonet mount for long-term rigidity. The mount is also rubber-sealed, providing dust and splash resistance for shooting in unpredictable weather.
Pleasing Bokeh: A rounded nine-blade diaphragm creates a soft, circular background blur that adds a professional touch to portraits and close-up shots.
Versatile Compatibility
Full-Frame & APS-C: While optimized for full-frame Sony E-mount mirrorless cameras, it can also be used on APS-C models, where it provides a 42-105mm equivalent focal length—perfect for portrait-heavy work.
Condition Note
Accessories: This lens is fully functional and includes both the front and rear lens caps. Please note that the lens hood is not included.
Technical Specifications
Focal Length: 28-70mm
Aperture Range: f/2.8 to f/22
Lens Mount: Sony E
Filter Size: 67mm
Weight: Approx. 16.6 oz (470 g)
Minimum Focus: 7.5″ (Wide) / 15″ (Tele)

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