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Canon Patent Application: Canon RF 14-21 1.4
I literally had to read the embodiments twice for this patent application, just in case I was hallucinating.
This patent application is for a mind boggling 14-21mm 1.55 (or 1.4 more or less) RF lens.
Focal Length 14.50 17.45 21.00
F-Number 1.55 1.55 1.55
Image Height 21.64 21.64 21.64
BF 17.10 21.64 21.64
There is also a more normal embodiment, but I really liked the 14-21;
Focal Length 16.00 22.62 32.00
F-Number 2.80 2.80 2.80
Image Height 21.64 21.64 21.64
BF 21.35 21.35 21.35
There's also another embodiment no less insane as the 14-21;
Focal Length 12.00 15.49 20.00
F-Number 2.00 2.00 2.00
Image Height 21.64 21.64 21.64
BF 14.88 14.88 14.88
As with all patent applications, this is Canon research, not a finished product.
US Patent Application 20180314060
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