Defective RF 85 F2 or typical focusing performance?

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Mystique of Tea Forum Member • Posts: 58
Defective RF 85 F2 or typical focusing performance?

It seems to me rather as defective piece so I made video when I use firstly RF 85 F2 on EOS R (with last firmware) and after that for comparison RF 35 F1.8, EF 24-70 F2.8 mkII and EF 50 F1.8 STM. In most of cases (even with changing focus point very sligthly) it cannot focus at all. It not even try, it just display red box. Other lens no problem in same situation. Anybody here with different experience?

https://www.youtube.com/watch?v=h584KUJFMvY

 Mystique of Tea's gear list:Mystique of Tea's gear list
Canon EOS Rebel SL2 Canon EOS R Canon EF 135mm F2L USM Canon EF 24-70mm F2.8L II USM Canon EF-S 24mm F2.8 STM +3 more
Canon EF 50mm F1.8 STM
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