We're told that Lee Filter is fairly close to announcing a filter solution for the Canon EF 11-24 f/4L. The solution will be based on the SW150 system that is used on Nikon's 14-24 f/2.8G lens.
We could get an announcement some time before summer.
Canon EF 11-24mm f/4L USM $2999: Adorama | B&H Photo | Amazon
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