The Canon EF 11-24 f/4 L lens was an extremely wide-angle lens that found popularity with DSLR users. Although it could easily be adapted to RF mirrorless cameras, doing so would make its bulky size more cumbersome and it was quite expensive -- but now there is an RF solution.
Late last night, Canon introduced a new wide-angle zoom lens -- the 10-20mm f/4 L IS STM -- that is unlike any optic it has ever produced. It's unique, and one publication published a story with quite an incendiary accusation: Canon didn't actually make it, Sigma did.
Canon announced the RF 10-20mm f/4 L IS STM lens, a groundbreaking full-frame ultra-wide-angle lens that expands upon the legacy of the popular EF 11-24mm f/4 L thanks to optical advancements and the EOS R mount's design.
If there was ever a focal length that the manufacturers tend to put by the wayside, it's the trusty 28mm prime lens. You see, ultra-wide lenses are dynamic and 24mm lenses are admittedly more versatile. However, the 28mm range is probably my preferred focal length for walking the streets with only one prime lens.
Canon has announced two new lenses for the RF mount: the RF24mm f/1.8 Macro IS STM and RF15-30mm f/4.5-6.3 IS STM. Both pieces of glass are compact, lightweight, and wide-angle.