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Canon Patent Application: Canon RF 14-21 1.4
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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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