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Canon Patent Application: Canon RF 24-70 F4L
One of my biggest waits for the RF mount is the F4.0 trinity. This lens, the 24-70mm isn't as important, however it atypically has better optical performance than the bigger zoom ratio 24-105mm.
This patent application details multiple different optical designs, however, they all are quite similar. Given the backfocus distance and the image height, these designs are most certainly for the RF mount.
Canon RF 24-70mm F4L IS USM
Focal length 24.73 40.97 67.90
F Number 4.12 4.12 4.12
Half angle of view 41.19 27.84 17.67
Image height 21.64 21.64 21.64
Total lens length 145.52 135.76 160.05
BF 18.00 25.64 55.54
Japan Patent Application 2020-14006
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