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Canon Patents

Patent: Canon EF-S 20mm f/2.8 STM

By Canon Rumors | June 22, 2015

Another lens patent from Canon, this time for an EF-S 20mm f/2.8. Are we going to see a series of inexpensive EF-S primes in the future? This is pretty close to the 24mm f/2.8 STM pancake though. Patent Publication No. 2015-111192 (Google Translated) Published 2015.6.18 Filing date 2013.12.6 Example 3 Focal length 20.65mm Fno. 2.88 Read more…

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Patent: Canon Getting Into the Drone Market?

By Canon Rumors | June 19, 2015

A patent showing drone technology has appeared. It looks like this patent is more about the movement and location of a drone camera, as it measures GPS locations, has an altimeter and can control the horizontal & vertical position of the camera. I’m not sure if Canon is working on a drone, a drone camera or Read more…

Patent: Canon EF 10mm f/2.8

By Canon Rumors | June 14, 2015

Here’s an interesting wide angle prime optical formula patent from Canon. It’s a non-fisheye EF 10mm f/2.8 for full frame sensors. Patent Publication No. 2015-102620 (Google Translated) Published 2015.6.4 Filing date 2013.11.22 Example 3 Focal length f = 10.30mm Fno. 2.88 Half angle of view ω = 64.54 ° Image height 21.64mm Lens length 124.58mm Read more…

Patent: ND Filter to Increase Dynamic Range

By Canon Rumors | June 3, 2015

A patent showing an ND filter to increase dynamic range for only half the field of view. In English (Thanks Keith): Introducing a neutral density filter for only half the field, you get differing amounts of light to AF pixels that are split on the same axis as the filter. This would increase the differential output of Read more…

Patent: Canon Improved Mirror, AF at High FPS & EVF

By Canon Rumors | June 1, 2015

I had trouble understanding this patent, which covers a lot of different variables. Keith at Northlight breaks it down: An interesting Canon patent reverses a fixed semitransparent mirror, to just divert light to a phase AF unit, whilst an EVF appears where the focus screen would be. Patent Publication No. 2015-97352 (Google Translated) Published 2015.5.21 Read more…

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