/Canon Patents

Canon Patents

Patent: A New Canon EF 300mm f/2.8L IS

By Canon Rumors | October 7, 2016

We posted a couple of days ago that Canon was well into the development of new “big white” lenses. The first patent for a new optical formula has appeared for an EF 300mm f/2.8L IS. Patent Publication No. 2016-173439 (Google Translated) Published 2016.9.29 Filing date 2015.3.17 Focal length 292.46 F-number 2.91 Angle of view 4.23 Read more…

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Patent: Canon CN-E 60-800mm f/4-5.6

By Canon Rumors | October 3, 2016

A new cinema lens patent has appeared, this time for a CN-E 60-800mm f/4-5.6. We expect to see a few lenses announced in early 2017 ahead of NAB in April. We’re told at least one anamorphic lens will be announced. Patent Publication No. 2016-173529 (Google Translated) Published 2016.9.29 Filing date 2015.3.18 Zoom ratio 13.33 Focal Read more…

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

By Canon Rumors | August 15, 2016

A patent showing another crazy superzoom has appeared, this time the optical  formula is for an EF  28-560mm f/2.8-5.6L USM. We’d  assume such a lens would also have IS if it ever came to market. We expected to see a non-L superzoom sometime in 2016, but that has apparently been put off until late 2017 Read more…

Crazy Patent: Canon EF 40-800mm f/4.5-5.6

By Canon Rumors | July 20, 2016

Here’s a crazy optical formula patent from Canon, an EF 40-800mm f/4.5-5.6 superzoom lens. The folks at Egami say it’s for a full frame DSLR and is an internal zoom lens. Patent Publication No. 2016-128846 (Google Translated) Published 2016.7.14 Filing date 2015.1.9 Zoom ratio 19.42 Focal length 41.09 92.80 152.20 225.00 797.99 F-number 4.67 4.66 Read more…

Patent: Canon 15-75mm f/2-5.6 for APS-C PowerShot?

By Canon Rumors | July 18, 2016

A patent showing an optical formula for a Canon 15-75mm f/2-5.6 for what appears to be an APS-C fixes lens application has appeared. Could Canon be readying a new APS-C PowerShot camera? More after the break.

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