The Canon RF 5.2mm ƒ/2.8 L Dual Fisheye 3D VR Photography Lens with RF-Mount is an ultra-wide prime covering Full Frame sensors. Ultra-wide coverage takes in a whole room or a whole horizon from close in, which is why architectural and landscape photographers reach for it. A fast ƒ/2.8 maximum aperture separates subject from background and keeps shutter speeds up as the light falls, closing to ƒ/16. Focus is manual, on a mechanical ring of fixed travel — the arrangement follow focus units and cine control systems are designed around. It mounts via RF-Mount. Closest focus is 7.9 in, for a maximum magnification of 1:33.3.
Key Features
Ultra-Wide Full Frame Coverage
The lens covers Full Frame sensors. An ultra-wide field of view holds an entire landscape or interior in one frame, and is the range architectural and astro work depend on.
ƒ/2.8 Maximum Aperture
A fast ƒ/2.8 aperture separates a subject from its background and holds shutter speed up in poor light, and the lens closes to ƒ/16.
Manual Focus
Focus is set by hand, with no motor between the ring and the optics. A mechanical focus ring of fixed travel is what follow focus units and lens control systems are built around, so the lens suits a cine rig as readily as a stills body.
1:33.3 Maximum Magnification
A maximum magnification of 1:33.3 sets how large a small subject renders on the sensor, with a closest focus of 7.9 in.
Rear Gel Filter
The filter mounts at the rear of the lens, against the mount, rather than on the front element — the arrangement used where the front element is too large or too curved to carry a thread, as on ultra-wide and super-telephoto glass.
