The Sigma 90mm F2.8 DG DN ‘Contemporary’ is a compact, premium prime lens for E and L mounts.. It has a total of 11 elements, including one aspherical and five SLD elements. A stepping motor is used to drive the focus unit on the 90mm.
The minimum focus distance on this lens is 0.5m (19.7″), with a max magnification of 0.2x. The lens includes both pinch-type and magnetic caps.