The title of the widest AF-capable rectilinear lens on the market has belonged to Canon for a long time with their EF 11-24mm F/4 L USM. Well, the king has been surpassed with today’s introduction of the RF 10-20mm f/4 L IS STM. How is it? We’ve used it for a few days to tell you all about it.

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(Originally posted by Ondřej Vachek)