Sony SEL20F28 E 20mm f/2.8 camera lens, Ø49

Wide-angle prime for APS-C E-mount

The Sony SEL20F28 is a 20 mm f/2.8 pancake lens built for Sony APS-C E-mount cameras. Its 30 mm full-frame equivalent field of view suits street, travel and everyday documentary work. A stepping motor drives fast, quiet autofocus with direct manual focus override. The lens weighs 69 g and extends only 20.4 mm from the mount.

Step up from kit zoom or 16 mm prime

This prime replaces a standard kit zoom when you want a wider maximum aperture and sharper corner-to-corner rendering at 20 mm. The jump is worth it for low-light street scenes, environmental portraits and video where the f/2.8 aperture and seven-blade circular diaphragm produce smooth background separation. Three aspherical elements control distortion and coma better than most budget zooms.

Fits small bags and gimbal rigs

The 62.6 mm diameter and 20.4 mm length let the combination slip into a jacket pocket or a minimal camera insert. A 49 mm filter thread accepts circular polarisers or ND filters without vignetting. Internal focusing keeps the front element stationary, simplifying filter use during video. Metal mount and rear-focus design maintain alignment on lightweight travel tripods and motorised gimbals.