New Canon Patent: 17-40 f/2.8-4 Lens

Japanese site egami (Google translation) spotted a Canon patent for a 17-40 f/2.8-4 lens. She successor of the highly popular [shoplink 242]EF 17-40 f4L USM lens[/shoplink]? Looks like. With the new 5D Mark III available in the near future it wouldn’t be strange if Canon decides to upgrade the [shoplink 242]EF 17-40 f4L USM lens[/shoplink]. Surely a good lens for a full-frame camera, and, btw, the cheapest of Canon’s L lens.

More images from the patent and specification on egami’s site.

EF 17-40 f4L USM lens: [shopcountry 242]