This post may contain affiliate links(s). An affiliate link means I may earn advertising/referral fees if you make a purchase through my link,
without any additional cost to you. It helps to keep this site afloat. Thank you in advance for your support. If you like what we do here, maybe buy me a
coffee.
Canon Patent Application: Super Telephotos
Canon has applied for a patent that describes a few of their super telephotos. Research never stops on super telephotos regardless of when the last release was done.
There are quite a few embodiments in this patent application;
Focal length 294.00
F-number 2.91
Half angle of view (degrees) 4.21
Image height 21.64
Total lens length 276.40
BF 65.35
Focal length 392.00
F-number 2.90
Half angle of view (degrees) 3.16
Image height 21.64
Total lens length 371.25
BF 69.92
Focal length 490.00
F-number 4.12
Half angle of view (degrees) 2.53
Image height 21.64
Total lens length 410.77
BF 66.03
Focal length 784.00
F-number 5.80
Half angle of view (degrees) 1.58
Image height 21.64
Total lens length 484.53
BF 75.94
US Patent Application 20190041606
US Patent Application 20190041605