Sigma 16-28mm f/2.8 DG DN

Relatively affordable zoom lens covering wide-angle focal lengths in the 16-28mm range. The model is available in versions for full-frame mirrorless Sony E and Leica L mounts. Its maximum aperture remains unchanged throughout the entire zoom interval and is f / 2.8. The lens belongs to the regiment of budget optics from the Contemporary league. The optical design of the Sigma 16-28mm f/2.8 DG DN, which consists of 16 elements in 11 groups, includes 4 aspherical lenses and 5 fluorite-like FLD elements.

The aperture at the width is 9-bladed. When shooting with a shallow depth of field, the photographer can expect to get soft bokeh. For focusing, the model uses a stepper motor and an internal focusing design. By the way, the lens can focus from a distance of 25 cm. Together with the model, it is assumed that filters with a diameter of 72 mm can be used. The zoom lens weighs 450 g, and its dimensions are 77 mm in diameter and 101 mm in length. Paired with cropped APS-C cameras, the model can be used as the equivalent of a 24-42mm f/4.2