30 Mm 59 Mm Mount Pentax Sigma Sigma 28-70mm f/2.8-4 DG for Pentax AF

This standard zoom lens has a large aperture of F2.8 at 28mm focal length and yet it is compact and lightweight, with an overall length of 62.5mm (2.5») and weight of 255g. (9oz.). This digitally optimized diagonal fisheye lens is equipped with a new multi-layer coating technology that reduces both flare and ghosting. This compact, large aperture zoom lens is ideal for digital and 35mm SLR cameras.