Canon RF 14-21mm f/1.55, 12-20mm f/2.0 and 16-32mm f/2.8 full-frame mirrorless lenses patented


Canon filed a patent (20180314060) for a new RF wide-angle full-frame mirrorless zoom lens. As it is typical with lens patents, three different calculations were presented - 14-21mm f/1.55, 12-20mm f/2.0 and 16-32mm f/2.8:

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

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

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

Via Canonnews


The Canon EOS R mirrorless camera is now in stock at: AdoramaB&H, Amazon and Park Camera (UK).

Additional Canon EOS R coverage and the latest reviews can be found at the new Canon EOS R Facebook page.

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