Canon rf 100 400mm f 5 6 8 is usm vs canon 100 500mm f 4 5 7 1?

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From Canon RF 100-400mm f/5.6-8 IS USM: Canon RF 100-400mm f/5.6-8 IS USM: A zoom lens by Canon for Full frame cameras, 100-400mm f/5.6-8. Light and cheap reach; dim at the long end, so it wants good light. Specs - Maker: Canon - Focal length: 100-400mm (zoom) - Maximum aperture: f/5.6-8 (it gets darker as you zoom in) - Made for: Full frame sensors - Mounts: Canon RF - Stabilised: yes - Autofocus: yes What it frames like - On full frame (Canon ...

From Canon RF 100-500mm f/4.5-7.1L IS USM: Canon RF 100-500mm f/4.5-7.1L IS USM: A zoom lens by Canon for Full frame cameras, 100-500mm f/4.5-7.1.

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