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Canon Patent Application: Canon RF 28-70mm F2.8 IS STM

The patent application (2024-140521) for the Canon RF 28mm f/2.8 IS STM has shown up in Japan. This is a little curious as we get to see the design criteria that Canon used, and how the theoretical lens should perform. Here is the optical formula in the patent application compared to the actual lens. As [...] Source...

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Published By: Canonrumors - Thursday, 10 October

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