Sigma 28-45mm F1.8 DG DN | Art (L-Mount)

Sigma's 28-45mm is the first full-frame zoom with a constant f/1.8 aperture. It covers the 28mm, 35mm and 40mm prime focal lengths in one lens while keeping prime-like depth of field and low-light ability, and suits low-light, street and video work where a fast standard view matters more than reach.

Zoom and focus are internal, so the 151.4mm L-Mount barrel never changes length, which suits gimbals. Five SLD and three aspherical elements target axial colour, focus breathing is suppressed, and close focus is a constant 30cm (1:4 at 45mm). It has an HLA linear motor, a de-clickable aperture ring with lock, two AFL buttons and a dust- and splash-resistant body. On L-Mount the by-wire focus ring's rotation angle can be set between 90 and 720 degrees on compatible cameras.