Sigma has announced the Sigma 16-28mm F2.8 DG DN | Contemporary Lens, a new full-frame ultra-wide zoom lens. The lens is a new design for mirrorless cameras and will be available for L and E mounts. It uses a stepping motor and internal focus design to give fast, quiet focus. It’s designed to work well for both stills and video.
It’s a relatively small, light design for a wide-angle zoom: 101mm (4.0″) long and 77mm (3.0″) in diameter and weighing 450g (15.9oz). This, combined with its internal zoom design, means it should be easy to balance for use on a gimbal. The lens features a 72mm front filter thread, allowing the easy use of circular polarizers and ND filters.
The design is made up of 16 elements in 11 groups, with 5 FLD (fluorite-like) and 4 aspherical lens elements. It’s able to focus down to 25cm (9.9″), giving a maximum reproduction ratio of 1:5.6. It has nine rounded aperture blades to help the lens continue to deliver circular bokeh as you stop down.
Sigma 16-28mm F2.8 DG DN | Contemporary Lens Key Specifications
- Lens construction: 11 groups, 16 elements (5 FLD and 4 aspherical elements)
- Angle-of-view: 107–75.4
- Number of diaphragm blades: 9 (rounded diaphragm)
- Minimum aperture: F22
- Minimum focusing distance: 25cm
- Maximum magnification ratio: 1:5.6
- Filter size: 72mm
- Dimensions (max diameter x length): 77.2mm x 100.6mm Weight: 450g