Sony fe 70 200mm f 4 g oss vs sony fe 70 200mm f 2 8 gm oss?

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From Sony FE 70-200mm f/2.8 GM OSS: Sony FE 70-200mm f/2.8 GM OSS: A zoom lens by Sony for Full frame cameras, 70-200mm f/2.8. Specs - Maker: Sony - Focal length: 70-200mm (zoom) - Maximum aperture: f/2.8 - 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/2.8 gives about the depth of field ...

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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