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CanonNews discovered another patent detailing some interesting kit zooms that start off at the ultra wide-angle. It’s unknown if Canon would ever make such a lens, but the zoom range is very intriguing.
It’s also a lens that could double for a standard lens for APS-C. However, it would bigger than it would need to be since it’s designed to cover the full frame image circle.
This is the second patent found with these lenses, indicating to me at least, that there is active interest inside of Canon for this type of lens.
Canon RF 17-70 F3.5-F5.6
focal length 17.40 35.02 68.69 F-number 3.57 4.18 5.85 half-field angle 51.19 31.71 17.48 Image height 21.64 21.64 21.64 total lens length 149.59 133.68 150.50 BF 13.43 27.63 57.99
Canon RF 18-80 F3.5-F5.6
focal length 18.70 37.55 77.50 F-number 3.57 4.18 5.85 half-field angle 49.16 29.95 15.60 Image height 21.64 21.64 21.64 total lens length 146.50 128.90 147.50 BF 15.19 27.72 59.84
