New Canon EF 17-40mm F2.8-4 lens in the works?

Recent patent filings reveal details of a possible successor to the Canon 17-40mm F4 L USM lens, one of the company's most popular lenses.

Patent filings show a possible replacement for the Canon 17-40mm F4 L USM lens. egami

Japanese site Egami seems to have discovered a Canon patent filing detailing a replacement for its 17-40mm F4 L USM zoom lens.

Sporting a brighter F2.8 to F4 variable aperture range, the new lens could enable users to capture sharper images in low-light conditions, due to a brighter F2.8 aperture at its 17mm wide end. This provides a one-stop improvement over its predecessor.

The Canon 17-40mm F4 L USM lens has always been one of Canon's most popular lenses, thanks to its constant F4 aperture and its ability to capture an ultrawide-angle perspective, when used on a full-frame camera. It is also the cheapest premium L lens currently available.

Details are scant, at this point, but we will keep you updated, when we have more information.

(Source: Crave Asia via Canon Watch)

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