Canon for RF lenses RF 35mm F1.8 Macro IS STM, RF 50mm F1.2L USM, RF 28-70mm F2L USM and RF 24-105mm F4L IS USM are expected to be announced for the new Canon full-frame mirrorless camera EOS R. Here are the size comparison when they are mounted on the Canon EOS R.
You can see, Canon RF 28-70mm F2L USM lens is obviously the biggest lens. The left reference is an EOS DSLR with Canon EF 24-105mm f/4L IS lens.
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