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Canon Patents

Patent: Canon EF 24-120mm f/3.5-5.6 IS

By Canon Rumors | August 5, 2015

A new patent showing a EF 24-120mm f/3.5-5.6 IS has appeared and we suspect this could be related to the EF 24-105 f/3.5-5.6 IS. Patent Publication No. 2015-132637 Published 2015.7.23 Filing date 2014.1.9 Example 4 Zoom ratio 4.76 Focal length 24.73 55.13 117.60 Fno. 3.60 4.91 5.83 Half angle of 41.18 21.43 10.42 Image height Read more…

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Patent: Canon EF 50mm f/1.4

By Canon Rumors | July 31, 2015

The optical formula for a new EF 50mm f/1.4 has appeared. It looks like the lens has internal focus and an odd negative front element. We haven’t heard anything for a while about a new 50mm f/1.4, but it’s definitely needed. Patent Publication No. 2015-138121 Published 2015.7.30 Filing date 2014.1.22 Example 1 Focal length 49.10 F Read more…

Patent: Canon EF 600mm f/4 DO IS

By Canon Rumors | July 20, 2015

A lens we’d all like to see happen has appeared in a patent, a 600mm f/4 DO IS. This isn’t the first time we’ve seen a patent for DO lens with a longer focal length than 400mm. Patent Publication No. 2015-11171 (Google Translated) Published 2015.1.19 Filing date 2013.6.28 Example 2 Focal length 588.30mm Fno. 4.12 Angle Read more…

Patent: Lubricating Canon Body Cap

By Canon Rumors | July 15, 2015

A patent for a Canon DSLR body cap that lubricates and protects the lens mount has appeared. I’ve never personally experienced a dried out or wind burned camera body lens mount, but maybe you have? As pointed out in the forum though, this sort of concept could be to help protect the rubber seals on lenses. Read more…

Patent: Canon Hexa Pixel CMOS AF

By Canon Rumors | July 13, 2015

A patent showing advancements in CMOS based autofocus from Canon has appeared. This patent seems to address an advanced pixel based contrast and phase AF, and even using the two together for focus adjustment. This could also be an advancement to Dual Pixel AF that Canon currently uses in various cameras across their lineup. Patent Publication No. 2015-121778 Read more…

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