/Canon Patents

Canon Patents

Patent: Canon 70-200mm f/2.8 DO

By Canon Rumors | June 20, 2016

A patent showing another optical formula for a diffractive optics lens has appeared, this time in the form of a 70-200mm f/2.8 DO. Most of the patent seems to talk about this lens for video applications. Patent Publication No. 2016-80877 Published 2016.5.16 Filing date 2014.10.17 Zoom ratio 2.69 Focal length 72.15 134.00 193.98 F-number 2.91 Read more…

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Patent: Canon EF 11mm f/4 Optical Formula

By Canon Rumors | June 17, 2016

A patent showing an optical formula for an EF 11mm f/4 has appeared, and we think it was likely part of the EF 11-24 f/4L development. Patent Publication No. 2016-81005 (Google Translated) Published 2016.5.16 Filing date 2014.10.22 Focal length 11.33 11.47 F-number 4.11 4.12 Half angle of 62.36 62.08 Image height 21.64 21.64 Overall length Read more…

Patent: Canon EF 24-105mm f/4L IS II

By Canon Rumors | June 15, 2016

A patent that is likely part of the EF 24-105mm f/4L IS II development has appeared over at Egami. We expect to see this lens announced alongside the EOS 5D Mark IV in August of this year. Patent Publication No. 2016-71283 Published 2016.5.9 Filing date 2014.10.1 Zoom ratio 4.13 Focal length 24.70 32.04 102.11 F-number Read more…

Patent: Canon EF 28-560mm f/2.8-5.6

By Canon Rumors | May 20, 2016

A patent for a super zoom optical formula from Canon has appeared. We heard a few months ago that Canon was working on a replacement for the EF 28-300 f/3.5-5.6L IS. This optical formula is for a truly impressive EF 28-560mm f/2.8-5.6 super zoom. The likelihood of such a product? I’m not sure, as the lens Read more…

Patent: CN-E 30-160mm t/2.8 LS

By Canon Rumors | May 2, 2016

Canon has filed patent for a new Cinema EOS lens optical formula. This time we get a 30-160mm t/2.8 for Super35mm sized sensors. Patent Publication No. 2016-57387 Published 2016.4.21 Filing date 2014.9.8 Zoom ratio 5.00 Focal length 32.00 100.00 160.00 F-number 2.70 2.70 3.00 Half angle of view (degrees) 24.82 8.42 5.28 Image height 14.80 Read more…

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