Canon Files Patent for Potential Successor to the EF 16-35mm f/2.8L II

According to the Egami Blog, Canon has filed a patent for a potential successor to the EF 16-35mm f/2.8L II.

If I'm understanding the garbled Google Translation correctly, there seems to be an emphasis on reduced vignetting in the lens. [Sean]

Description of Patent

Patent Publication No. 2016-14800

• Published 2016.1.28
• Filing date 2014.7.3
• Zoom ratio 2.06
• Focal length 16.48 23.60 33.95
• F-number 2.90 2.91 2.91
• Angle of view 52.70 42.51 32.51
• Image height 21.64
• Overall length of the lens 175.98 164.19 160.08
• BF 37.99 44.61 56.87