[Dan K] had just such a lens from Sigma, but wanted to get it working fully with a camera using the Canon EF lens fitting. Hacking ensued. The lens in question was a Sigma 15-30mm f/3.5-4.5 EX DG ...
LensRentals' rundown of its most rented gear sees an unexpected revival of Canon's top EF lenses and cameras, even while EF-mount rentals experience an overall fall.
The list of gear photographers want but can’t afford is topped by the Canon EOS R5, R6 Mark II… and the 5D Mark IV?
Weight 200g / 7.1 oz. Notes Image Stabilization; EF-S lens mount, exclusively for bodies with APS-C sensors. A lens hood (EW-60C) and lens case (LP814) are available as optional accessories.
(From Canon lens literature) Designed to satisfy the discriminating needs of sports and wildlife photographers, the EF 200–400mm f/4L IS USM Extender 1.4X is a high-performance super telephoto ...
Reviews / Canon EF 50mm f/1.8 II Interchangeable Lens Review Gary Wolstenholme reviews the compact and basic Canon EF 50mm f/1.8 II lens.