Patents: Canon RF 28-70mm f/2.8 & 24-70mm f/2.8 Lenses

Canon filed a patent describing 28-70mm f/2.8 and RF 24-70mm f/2.8 Lenses for Canon full-frame mirrorless cameras. It seems to be a patent on the optical system of the large-aperture zoom lenses “28-70mm F2.8” and “24-70mm F2.8” that are likely to adopt a retractable structure. [Publication number] P2022147945[Publication date] October 6, 2022[Patent application title] Zoom lens and imaging device Example […]

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