Nikon af s 70 200mm f 4g ed vr vs sigma 70 200mm f 2 8 dg os hsm sports?

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From Sigma 70-200mm f/2.8 DG OS HSM Sports: Sigma 70-200mm f/2.8 DG OS HSM Sports: A zoom lens by Sigma for Full frame cameras, 70-200mm f/2.8. Specs - Maker: Sigma - Focal length: 70-200mm (zoom) - Maximum aperture: f/2.8 - 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, 70-200mm. - On APS-C (Nikon F): like 105-300mm on full frame; f/2.8 gives about ...

From Nikon AF-S 70-200mm f/4G ED VR: Nikon AF-S 70-200mm f/4G ED VR: A zoom lens by Nikon for Full frame cameras, 70-200mm f/4. Lighter and cheaper than the f/2.8 versions. Specs - Maker: Nikon - Focal length: 70-200mm (zoom) - Maximum aperture: f/4 - Made for: Full frame sensors - Mounts: Nikon F - Stabilised: yes - Autofocus: yes What it frames like - On full frame (Nikon F): as marked, 70-200mm. - On APS-C (Nikon F): like 105-300mm on full frame; ...

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