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Rover

05-21-2018, 03:06 PM
No, I was referring to the Canon / Sony 16-35mm f/4 lenses, not the f/2.8 ones (where the size discrepancy is less pronounced). The Sony 16-35/4 has a 72mm filter thread, the Canon (which I own) has 77mm.
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Opticallimits > Forums > Canon EOS > Canon full frame mirrorless UWA zoom patent