There has been rumors for as long as my old brain can remember about a “big white” super telephoto zoom lens. There has been talk about an RF 200-500mm f/4L IS USM, an optical design that we have seen patents for in the past. The thing with optical designs and Canon L lenses, is that […] The post Canon RF 300-600mm f/5.6L IS USM, Here We Go Again appeared first on Canon Rumors....
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