Patent: Canon EF-M 10mm F/2.8 Fisheye Lens
The latest Canon patent application 2018185386 (in Japan) describes a EF-M 9.60mm (10mm) f/2.8 fisheye lens for Canon mirrorless cameras.
Canon EF-M 10mm F/2.8 Fisheye Optical Formula
Focal length 9.60
F number 2.80
Field angle 181.70
Image height 13.66
Lens total length 55.13
BF 15.00
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Via: canonnews