A new Canon patent application has surfaced, detailing a new 13-21mm f/2.8 RF mount lens for the full-frame Canon EOS R mirrorless system. There’s no word that this lens will actually see a production line, and Canon does already have a 15-35mm f/2.8L IS USM lens for the RF mount, so I think it might be unlikely.
But, a lens that goes a little bit wider and doesn’t quite have the same focal length range would potentially be a little lighter (although the measurements suggest it’s longer) and possibly substantially cheaper than the current $2,299 monster.
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