Canon Files Patent for CN-E 24-70mm f/2.8 Cinema Zoom

According to the Egami Blog, Canon has filed a patent for a CN-E 24-70mm f/2.8 L S lens.

The curious thing about this patent is that Canon already makes a CN-E 30-105 T2.8 L S lens. With so little to differentiate the lenses, one wonders whether the extra 5mm on the short end will be a huge selling point compared to the 30-105's extra 30mm of focal length range on the long end. [Sean]

Patent Details

Patent Publication No. 2016-14816

• Published 2016.1.28
• Filing date 2014.7.3
• Zoom ratio 3.00
• Focal length 24.00 48.00 72.00
• F-number 2.80 2.80 2.80
• Half angle of 32.94 17.95 12.19
• Image height 15.55 15.55 15.55
• The total lens length 241.06 241.06 241.06
• BF 49.16 49.16 49.16