Sigma 28-70mm f2.8 DG DN Contemporary

28-70mm | Sigma lens Buy SIGMA 28-70mm f2.8

The contemporary 28-70mm f/2.8 DG DN lens for SONY SIGMA E-Mount is a versatile wide-angle to vertical zoom that is characterized by its constant maximum aperture of f/2.8. The design adapts to work in the available lighting conditions while providing greater control over depth of field. Lighter and more compact than similar 24-70mm lenses, its optical design incorporates two FLD elements and two low-dispersion SLDs plus three aspherical elements that reduce a variety of aberrations for high sharpness, greater clarity and improved color accuracy. It features a single lightweight focus element, which keeps the AF unit small. This, along with a quiet and fast stepper motor, makes it 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 multilayer and nanoporous coatings to improve contrast and color reproduction by suppressing lens glare and ghosting for optimal light transmission, and an additional water- and oil-repellent layer on the front optics helps keep the lens stain-free. and droplets. The weather-sealed design benefits when working in harsh environmental conditions, and a rounded nine-blade diaphragm provides a pleasant bokeh quality when using wider apertures.

• Standard zoom for full-frame E-mount mirrorless cameras

• Focal length equivalent to 42-105 mm when used in an APS-C camera

• Constant maximum aperture of f2.8 for low-light use and depth-of-field control

• Two low dispersion F elements (FLD) and two special low dispersion elements (SLD) reduce chromatic aberrations and color stripes

• Three aspherical elements control spherical aberrations and distortion.

• Super multilayer and nanoporous coatings minimize lens flare and ghosting and produce neutral, contrast-rich color images

• Integrated stepper motor and optimized AF algorithm provide fast and quiet autofocus

• Minimum focusing distance of 28mm: 19cm, 1:3.3 magnification

• Minimum focusing distance of 70mm: 38cm, 1:4.6 magnification

• Nine-leaf rounded diaphragm for pleasant bokeh quality

• Brass bayonet for mounting precision and rigidity

• Rubber sealing for dust and splash resistance