SIGMA AF 28-70mm f/2.8 DG DN (C) / L-Mount
The 28-70mm f/2.8 DG DN Contemporary Lens for Leica L-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. More lightweight and compact than similar 24-70mm lenses, it's optical design incorporates two FLD and two SLD low-dispersion elements plus three aspherical elements that reduce a variety of aberrations to achieve high sharpness, enhanced clarity, and improved color accuracy. It features just one lightweight focusing element, which keeps the AF unit small. This, along with a quiet and fast stepping motor, makes for responsive and near-silent autofocus performance, an ideal combination for filmmakers looking for a high-performance, lightweight, and easy-to-handle camera system that works well with a gimbal or other accessories.
Each optical surface features Super Multi-Layer and Nano Porous coatings to improve contrast and color rendering by suppressing lens flare and ghosting for optimal light transmission, and an added water- and oil-repellent coating on the front optic helps keep the lens free from smudges and droplets. The weather-sealed design benefits working in trying environmental conditions, and a nine-blade rounded diaphragm contributes a pleasing bokeh quality when using wider apertures.
- Standard zoom for full-frame L-mount mirrorless cameras
- 42-105mm equivalent focal length when used on an APS-C camera
- Constant f/2.8 maximum aperture for Low light use and depth-of-field control
- Two F Low Dispersion (FLD) and two Special Low Dispersion (SLD) elements reduce chromatic aberrations and color fringing
- Three aspherical elements control spherical aberrations and distortion
- Both Super Multi-Layer and Nano Porous coatings minimize lens flare and ghosting and produce contrast-rich and color-neutral imagery
- Integrated stepping motor and optimized AF algorithm provides quick and quiet autofocus
- 28mm minimum focus distance: 7.5", 1:3.3 magnification
- 70mm minimum focus distance: 15", 1:4.6 magnification
- Rounded nine-blade diaphragm for a pleasing bokeh quality
- Brass bayonet for mounting accuracy and rigidity
- Rubber sealing for dust- and splash-resistance
In The Box
- Sigma 28-70mm f/2.8 DG DN Contemporary Lens for Leica L
- Sigma LCF-67 III 67mm Lens Cap
- Sigma LCR II Rear Lens Cap for Sony E
- LH706-01 Lens Hood
Key features
- Product Lines: Contemporary
- Construction: 16 elements in 12 groups
- Lens Type: Standard
- Sensor Size: Full Frame
- Angle of view: 34.3° (FF), 22.9° (APS-C)
- Number of diaphragm blades: 9 (Rounded diaphragm)
- Minimum aperture: F22
- Minimum focusing distance: 38cm
- Maximum magnification ratio: 1:3.3 Wide
- Dimensions (diameter x length): φ72.2mm x 101.5 mm
- Weight (g): 470g
- Filter diameter: 67mm
* All figures calculated by L-Mount. Note: The L-Mount Trademark is a registered Trademark of Leica Camera AG. About Product Name: Product name includes "DG" when the lens is designed to deliver the ultimate in performance on cameras with full-frame sensors, and "DN" when the lens design is optimized for mirrorless cameras with the short flange focal length.
