The shortest focal length for the EOS R system to date is offered by the Canon RF 14-35mm F4 L IS USM ultra-wide zoom lens introduced today. With a constant f/4 speed, it's not an outstanding light catcher, but at least it eliminates the need for readjustment when the focal length is changed. It is the third F4 zoom lens for RF, already available are the RF 24-105mm F4 L IS USM and RF 70-200mm F4 L IS USM.
Canon RF 14-35mm F4 L IS USM
A Nano USM motor is also said to ensure fast, smooth, and quiet operation here, while optical image stabilization compensates for a total of 5.5 stops, according to Canon. The closest focusing distance is 20 cm, and focus breathing is said to be minimized. The optical construction includes 16 elements in 12 groups, including three aspherical and three UD lenses, one of which is both UD and aspherical. A combined coating (Subwavelength Structure Coating /SWC, Air Sphere Coating /ASC) is said to effectively prevent lens reflections and flare.
The RF 14-35mm F4 L IS USM features a lens control ring that allows quick and direct control of, for example, exposure, aperture or ISO without having to call up the menu. Manual focusing is possible at any time via the focus ring without switching. The aperture consists of new blades.
The optic weighs 540g and offers a 77mm filter thread and Canon L-series weather sealing. It is expected to hit the market in September at a price of €1,819.