Richard CanonNews / Wednesday, December 27, 2017 / 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. New patent application for 18-200 zoom for APS-C cameras The 18-200mm is becoming long in the tooth for the EF-S lens lineup. Most of the other lenses have been STM'ed and improved by now, sans this one. This patent is for improved optical performance on large zoom ratio lenses and has the following characteristics embodied; Zoom ratio 10.38 Wide angle Middle Looking far Focal distance 18.60 49.08 193.00 F number 3.59 4.89 5.88 Field angle 36.29 15.55 4.05 Image height 13.66 13.66 13.66 length of the lens 145.04 172.07 200.21 BF 38.23 59.69 74.12 Japan Patent Application 2017-219655 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 Mirrorless 9-18mm UWA lens patent Next Article New patent application for a variety of high end APS-C UWA zoom lenses Print Tags: Patents Please login or register to post comments.