Can I adapt the canon ef 500mm f 4l is ii usm to canon rf?

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From Canon EF 500mm f/4L IS II USM: Canon EF 500mm f/4L IS II USM: A prime lens by Canon for Full frame cameras, 500mm f/4. Specs - Maker: Canon - Focal length: 500mm (prime) - Maximum aperture: f/4 - Made for: Full frame sensors - Mounts: Canon EF - Stabilised: yes - Autofocus: yes What it frames like - On full frame (Canon EF): as marked, 500mm. - On APS-C (Canon) (Canon EF): like 800mm on full frame; f/4 gives about the depth of ...

From Lenses: Adapters: Mirrorless mounts are shallow, so old manual-focus lenses from film cameras adapt easily and cheaply. It's a fun way to try fast or unusual lenses, without autofocus.

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