First Canon RF Mount Super Telephoto Lens Could be a “DO” Lens

Canon is expected to announce new EOS R mirrorless camera in 2019, along with some new RF lenses, such as f/2.8 zoom 24-70mm70-200mm16-35mm lenses. According to CR, first Canon super telephoto lens for RF mount is also in developing, and it will be a diffractive optics (DO) lens for Canon EOS R.

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