“ Does AF coverage change with EF-mount lenses?
Since EF-mount lenses used via the adapter are so much further from the sensor surface, it seems likely that they wouldn't be able to support as large an AF area as native RF-mount ones. I asked, and it turns out this is true. It will vary some based on the specific lens design, but some EF-mount lenses won't have quite as wide AF coverage as the native ones. Native RF-mount coverage is 100% vertically and 88% horizontally, but some EF-mount lenses will only have 80% horizontal coverage (again, depending on the specific lens design). „
Classicissimo di Canon. Con l'800mm vanno i punti b e c, col 400/5.6 i punti d ed f, col 100-400 g h e k, col ...
sti ingegneri Canon hanno sempre poca voglia di studiare.
Se coi supertele ef la copertura sarà come quella delle reflex, o non ci sarà l'f/11, allora cambio davvero 
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