Sigma 28-70mm f/2.8 DG DN Contemporary Lens for Sony E

Product Description:

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. 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 E-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

Technical Specifications:

Focal Length 28 to 70mm

Maximum Aperture f/2.8

Minimum Aperture 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

Maximum Magnification 4.6x

Optical Design 16 Elements in 12 Groups

Diaphragm 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

Length at Maximum Extension 4.97" / 126.3 mm

Weight  470 g