Richard CanonNews / Thursday, October 22, 2020 / Categories: Canon Patents 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: Canon 400mm F8.0 This is a curious patent describing the 600mm and 800mm F11's. While that's not particularly interesting it seems that Canon may have another of these lenses in mind, a 400mm F8. Of course with all these patents, the embodiments don't necessarily mean something is going to get created, however, it's a curious addition, and I'm sure there would be some interest in a slightly faster compact 400mm. Focal length 412.00 F number 8.24 Half angle of view 3.01 Image height 21.64 Lens total length 189.54 BF 73.20 Canon Patent Application 2020-173350 Richard CanonNewsRichard CanonNews Richard has been using Canon cameras since the 1990s, with his first being the now legendary EOS-3. Since then, Richard has continued to use Canon cameras and now focuses mostly on infrared photography. Richard is the founder and editor of CanonNews since 2017, and has worked as a writer on CanonRumors and other websites in the past. Other posts by Richard CanonNews Contact author Facebook page Previous Article Canon Patent Application: Improved EVF optics Next Article Canon Patent Application: F1.8 series of primes Print Tags: Canon Patent Application Please login or register to post comments.