Sony fe 100 400mm f 4 5 gm oss vs sony fe 70 200mm f 4 g oss?

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From Sony FE 100-400mm f/4.5 GM OSS: Sony FE 100-400mm f/4.5 GM OSS: A zoom lens by Sony for Full frame cameras, 100-400mm f/4.5. A constant f/4.5 telephoto zoom for sport and wildlife, sold alongside the older f/4.5-5.6. Specs - Maker: Sony - Focal length: 100-400mm (zoom) - Maximum aperture: f/4.5 - Made for: Full frame sensors - Mounts: Sony E - Stabilised: yes - Autofocus: yes What it frames like - On full frame (Sony E): as marked, 100-400mm. - On APS-C ...

From Sony FE 70-200mm f/4 G OSS: Sony FE 70-200mm f/4 G OSS: A zoom lens by Sony for Full frame cameras, 70-200mm f/4. Specs - Maker: Sony - Focal length: 70-200mm (zoom) - Maximum aperture: f/4 - Made for: Full frame sensors - Mounts: Sony E - Stabilised: yes - Autofocus: yes What it frames like - On full frame (Sony E): as marked, 70-200mm. - On APS-C (Sony E): like 105-300mm on full frame; f/4 gives about the depth of field ...

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