Richard CanonNews / Tuesday, December 26, 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. Canon patents a 17-35 IS 4-5.6 After the release of the 24-105 3.5-5.6 STM lens, Canon's been relatively quiet on producing other STM lenses for a "cheaper" series of lenses for full frame such as what exists for crop sensor users. This patent appears to be in line with a 17-35 4.0-5.6 IS which certainly would fit the mold of a cheaper UWA for full frame users. Wide angle Middle Looking far Focal distance 17.50 25.12 34.09 F number 4.00 4.85 5.88 a half field angle (degree) -- 51.03 40.73 32.40 Image height 21.64 21.64 21.64 Whole length of the lens 130.88 128.52 134.05 BF 37.60 49.75 64.06 Japan patent application 2017-161568 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 looking to improve heat sinking for mirrorless cameras. Next Article Canon patent on a hybrid pellicle mirror SLR Print Please login or register to post comments.