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Patent: Canon patents RF 200mm f/2L IS, RF 300mm f/2.8L IS and RF 500mm f/4L IS optical formulas | Canon Rumors


I wonder if any of these lenses will use DO to further reduce weight. Moreover, I suspect that these lenses will be announced in parallel with the R1 flagship.

Sadly no, because the RF 500mm f4 in this patent is 2,8 cm longer than the current EF 500mm f4. The DO lenses are lighter and much shorter.





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