Canon is planning to announce the new super-telephoto lenses in 2022. In addition to the previously reported RF 400mm f/4 DO IS Extender 1.4x, RF 600mm f/4 IS Extender 1.4x, Canon filed a new patent for RF 200-500mm f/4L IS USM and RF 300-800mm f/8 IS USM Lenses.
Canon patent application 2022-26392 (Japan) discusses optical formulas for 200-500mm f/4 and 300-800mm f/8 lenses. Check out the details below :
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