Canon 24mm f3.5: Distortion

at Distortion at 10 mm we get some gentle barel Distortion in the corners of the image frame what's slightly unusual is that we still get Barrel Distortion when the lens is zoomed in to 24 mm although thankfully it's only very slight not a particularly inspiring performance for Distortion however…

The affect is perspective distortion.

to this lens that didn't exist in the old 24mm lens this also has a very large diameter a spherical front element and that keeps all that Distortion to a minimum the lens also has something that's new it's Canon's newly developed s swc or subwavelength structure coating what that does is it really…