The Canon lens produces slight to medium amount (1.5%) of barrel distortion. This is rarely noticeable and lower than for most zoom lenses at 24mm. Vignetting Typical for most lenses used on full format cameras, the EF 24mm f/2.8 USM IS shows a heavy light falloff at large aperture settings.
The lens can focus as close as 9.8 inches (0.25 meters), resulting in a maximum magnification of 0.2x at 20mm, which is slightly worse than the EF 11-24mm lens (0.16x) and the RF 14-35mm f/4 (0.38x).The title of the widest AF-capable rectilinear lens on the market has belonged to Canon for a long time with their EF 11-24mm F/4 L USM. Well, the king has been surpassed with today’s
Specifications: Canon EF 24mm f/2.8 IS USM Lens : Year Introduced: 2012: Mounts On: Full-Frame, APS-C: Lenses / Groups: 11/9: Angle of View: Diagonal: 84° Angle of View: HorizontalUCJX.