Richard CanonNews / Thursday, March 1, 2018 / Categories: Canon Patents 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 Previous Article Tokina officially announces the Opera 50mm 1.4 Next Article Canon Patent Application: Improving Global shutter response Print 5428 Leave a comment Name: Please enter a name. Email: Please enter an email address. Please enter a valid email address. Comment: Please enter comment. I agree This form collects your name, email, IP address and content so that we can keep track of the comments placed on the website. For more info check our Privacy Policy and Terms Of Use where you will get more info on where, how and why we store your data. You must read and accept this rules. Add comment