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Canon News has uncovered a patent for a new RF mount optical formula, this patent shows an RF 17-70mm f/3.5-5.6 in various forms. This looks like some kind of wide kit style lens because of the variable aperture. Below are the three embodiments: Canon RF 17-70mm f/3.5-5.6
Canon RF 17-70mm f/3.5-5.6
Canon RF 18-80mm f/3.5-5.6
Photography via Canon Rumors https://ift.tt/2v4dYqS August 22, 2019 at 07:18AM
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