Richard CanonNews / Thursday, December 27, 2018 / 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: 90mm 2.8 and 100mm 2.8 Macro for the Canon RF Here is a patent application we know Canon is most likely working on. Having a 100mm macro is pretty standard for any ecosystem, and the RF system will certainly have a 1:1 macro lens around 90 to 100mm in focal length. This patent application illustrates two different lenses, one at 90mm and another at 100mm. Both with IS. Because of the small back focus (BF) these embodiments are certainly discussing a full frame Canon RF mounted macro lens. focal length 97.00 F number 2.92 Half field angle 12.57 Image height 21.64 total length 118.00 BF 26.82 Focal length 86.00 F number 2.87 Half angle of view 14.12 Image height 21.64 Total length 115.07 BF 15.93 Japan Patent Application 2018205435 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: Zoom lens for 1" sensor sizes Next Article Canon Patent Application: Canon RF 70-200mm 2.8 Print Tags: Canon Patent ApplicationMacro Please login or register to post comments.