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Canon Patent 16-40mm F4 Lens

Canon-17-40mm-Lens-ImageA new lens patent surfaced over the web that shows 16-40mm F4 Lens, so the lens could directly replace EF 17-40mm f/4L, take a look at the details of patent below

Patent Publication No. 2015-206976 (Google Translated)
Published 2015.11.19
Filing date 2014.4.23
Zoom ratio 2.36
Focal length 16.48 24.40 38.90
F-number 4.12 4.12 4.12
Half angle (in degrees) 52.70 41.56 29.08
Image height 21.64
Overall length of the lens 177.74 162.40 159.73
BF 38.00 45.51 63.40

BTW all you already know that Canon 1DX Mark II announcement is in the corner, so follow us for regular updates and rumors.

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