The Sigma AF 16-28mm f/2.8 DG DN Contemporary lens is designed for cameras with Sony E-mount (FE) and L-Mount. It features a focal length of 16-28mm in 35mm equivalent, with a maximum aperture of f/2.8. The construction includes 16 elements in 11 groups, utilizing 9 diaphragm blades. Focusing is available in both automatic and manual modes, with a stepper motor for autofocus. The minimum focusing distance is 0.25m. The lens does not come with image stabilization or a tripod mount. The filter thread diameter is 72mm. Dimensions: 102x77mm, weight: 450g. The package includes front and rear lens caps and a lens hood.