Richard CanonNews / Thursday, March 1, 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: Lenses for APS-C compact cameras This patent application has two lenses for compact cameras that are of APS-C in size. These would have to be compact cameras because the image circle at the wide end is not 13.66mm meaning some image stretching is occuring at the wide end. This happens occassionally in the powershot cameras. Lens embodiments mentioned are: focal length 18.21 50.49 85.95 F number 2.91 5.51 7.69 angle of view 31.59 15.14 9.03 image height 11.20 13.66 13.66 lens length 72.62 82.25 93.33 BF 3.86 3.86 3.86 focal length 17.86 49.71 102.44 F number 2.47 5.05 7.32 angle of view 32.10 15.36 7.60 image height 11.20 13.66 13.66 length 62.60 73.89 86.71 BF 3.94 3.94 3.94 Focal distance 15.21 52.83 102.65 F number 1.85 4.20 6.00 Field angle 36.19 14.50 7.58 Image height 11.13 13.66 13.66 length 83.84 101.55 121.52 BF 3.81 3.81 3.81 Japan Patent Application 2018-31935 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 Tokina officially announces the Opera 50mm 1.4 Next Article Canon Patent Application: Improving Global shutter response Print Please login or register to post comments.