Canon ef 70 200mm f 4l usm vs tamron 70 210mm f 4 di vc usd?

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From Tamron 70-210mm f/4 Di VC USD: Tamron 70-210mm f/4 Di VC USD: A zoom lens by Tamron for Full frame cameras, 70-210mm f/4. Specs - Maker: Tamron - Focal length: 70-210mm (zoom) - Maximum aperture: f/4 - Made for: Full frame sensors - Mounts: Canon EF, Nikon F - Stabilised: yes - Autofocus: yes What it frames like - On full frame (Canon EF, Nikon F): as marked, 70-210mm. - On APS-C (Nikon F): like 105-315mm on full frame; f/4 gives about ...

From Canon EF 70-200mm f/4L USM: Canon EF 70-200mm f/4L USM: A zoom lens by Canon for Full frame cameras, 70-200mm f/4. A light L telephoto without stabilisation, a classic used buy. Specs - Maker: Canon - Focal length: 70-200mm (zoom) - Maximum aperture: f/4 - Made for: Full frame sensors - Mounts: Canon EF - Stabilised: no - Autofocus: yes What it frames like - On full frame (Canon EF): as marked, 70-200mm. - On APS-C (Canon) (Canon EF): like ...

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