About the Canon 11-24mm F/4L
The Canon 11-24mm F/4L is a complete game changer for the ultra-wide lenses. This lens really has no true competition since it’s release. We’re sure that will change with how strong Sony and Sigma have been pushing to become top competitors, but as of now (10/17) this lens is in a league of it’s own.
The engineering behind the Canon 11-24mm is facinating. The engineers too things to the limits with making this lens the widest rectilinear full-frame SLR lens with its 126º05’ diagonal widest angle of view. You did not read that wrong. 126º05’. That’s absolutely incredible. Just for comparison, the Canon 16-35mm F/2.8L has a viewing angle of 108° 10′ and shows distortion at 16mm.
So what makes this lens so special? Well outside of the crazy wide viewing angle, this is a rectilinear lens. What does that mean and why do we keep stressing that aspect of this lens? Well it’s simply means the lens has been designed to help maintain straight lines. As we all know, with wide angle and ultra-wide angle lenses, straight lines become distorted. With the Canon 11-24mm, they have done an amazing job minimizing distortion.