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Patent: Canon 500mm f/4 DO IS and Canon 600mm f/4 DO IS

It seems patent applications for diffractive optic super telephoto lenses is becoming a monthly thing. Canon News has uncovered another patent application showing both a Read more…

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Patent: Canon 500mm f/4 DO IS and Canon 600mm f/4 DO IS

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Patent: Stacked, Curved and Other Sensor Patents

Canon continues to roll out the image sensor technology patents, as we get to see some new stacked and curved sensor patents. Canon News interprets all of these patents below. Japan Patent Application 2018-019270: We have found another patent application dealing with some of the problems and issues with curved sensors from Canon.  Unlike some other Read more…

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Patent: Stacked, Curved and Other Sensor Patents

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Patent: Canon Curved Aperture Diaphragm

Here’s another patent filing picked up by egami : (translated) Patent Publication No. 2014-13363,2014-13365 Publication date 2014.1.23 Filing date 2012.6.6 Canon patents The iris of the dome-shaped If I’m reading this correctly, if the aperture follows the curvature of the glass you end up by saving some space which can lead to more compact lenses, if not for the M line, than perhaps we’ll see some smaller EF-S lenses

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Patent: Canon Curved Aperture Diaphragm

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