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Canon Patents

Patent: Contact Cleaning Body Cap

By Canon Rumors | November 26, 2014

Here’s a fun one, howabout a body cap that cleans the contacts in the camera every time you put it on and take it off? Mix that with a backcap that does the same and that should eliminate those pesky contact errors. Patent Publication No. 2014-219568 Published 2014.11.20 Filing date 2013.5.8 Canon patent Body cap […]

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Patent: Canon EF-S 11-24mm f/3.5-4.5

By Canon Rumors | November 18, 2014

Is Canon working on a replacement to the very good EF-S 10-22mm f/3.5-4.5? By the looks of this patent they are. I’d expect any replacement to have STM and maybe a bit better build quality, though the current one is about as reliable as they come. Example 3 (Google Translated) Zoom ratio 2.07 Focal length […]

Patent: Canon EF 35mm f/1.4L II

By Canon Rumors | October 29, 2014

A new patent for an EF 35mm f/1.4L II has appeared. We haven’t seen a new patent for this optical formula in quite some time.  I recently received a claim that we’ll see such a lens in Q1 of 2015, but I haven’t been able to confirm that information. Patent Publication No. 2014-202952 Published 2014.10.27 […]

Patent: 10-22mm f/3.5-4.5 With a Liquid Element

By Canon Rumors | October 20, 2014

A patent showing a 10-22 f/3.5-4.5 optical formula with a liquid element has shown up. I think it’s safe to say that this isn’t going to end up as a consumer product any time soon, but it’s still pretty interesting. Patent Publication No. 2014-145883 (Google Translated) Published Date 2014.8.14 Filing date 2013.1.29 Example 4 Zoom ratio […]

Patent: Canon EF 2.0X TC With Diffractive Optics Element

By Canon Rumors | October 19, 2014

A patent showing a 2x teleconverter with a diffractive optic element (DO) has surfaced. The 2.0x teleconverter could use a little length reduction, though I’m not sure if DO would reduce the size of the current TC all that much. Patent Publication No. 2014-145870 (Google Translated) Published Date 2014.8.14 Filing date 2013.1.29

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