Patent: Canon RF 200-500mm f/4L & RF 300-800mm f/8 IS USM Lenses
Several big Canon RF telephoto zoom lens designs appear in a US patent application, including: Canon RF 200-500mm f/4L IS USM Lens Canon RF 200-400mm f/4L IS USM Lens Canon RF 300-800mm f/8 IS USM Lens Canon RF 150mm f/5 to 600mm f/6.5 Several months ago, we reported that Canon is planning to announce the new RF 400mm f/4 DO IS […]
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