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Canon Patent: 100-400mm F/5.5-7.1 Lens For APS-C Camera

Canon Patent: 100-400mm f/5.5-7.1 Lens For APS-C Camera

Here is an inetersting Canon patent for a 100-40mm lens. Canon Patent Application 2020-027156 (Japan) discusses optical formulas for a 100-400mm f/5.5-7.1 lens. The interesting fact is that this 100-400mm f/5.5-7.1…

Canon Patent Application: High Speed Mirror Control

Canon Patent Application: High Speed Mirror Control

Canon patent application 20190310458 (US) discusses technology and methods for a high speed mirror mechanism. From the patent application literature: In view of improvement of continuous photographing performance, a technique…

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