Overview

The Canon EF 28mm f/2.8 IS USM is a compact, lightweight wide-angle prime with image stabilization. Optically, it delivers excellent center sharpness from f/2.8 and very good borders, with peak performance between f/4 and f/8. Weaknesses include noticeable barrel distortion (1.6%) and heavy vignetting at f/2.8, though both improve on stopping down. Build quality is improved over older versions, with fast AF and a manual-focus override ring. It suits full-frame users seeking a sharp, stabilized wide-angle for travel or general use, especially those wanting an affordable alternative to zooms.