Sony e 18 55mm f 3 5 5 6 oss vs sigma 18 50mm f 2 8 dc dn contemporary?

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From Sony E 18-55mm f/3.5-5.6 OSS: Sony E 18-55mm f/3.5-5.6 OSS: A zoom lens by Sony for APS-C cameras, 18-55mm f/3.5-5.6. The kit zoom of the early NEX bodies. Specs - Maker: Sony - Focal length: 18-55mm (zoom) - Maximum aperture: f/3.5-5.6 (it gets darker as you zoom in) - Made for: APS-C sensors - Mounts: Sony E - Stabilised: yes - Autofocus: yes What it frames like - On APS-C (Sony E): like 27-82mm on full frame; f/3.5-5.6 gives about ...

From Sigma 18-50mm f/2.8 DC DN Contemporary: Sigma 18-50mm f/2.8 DC DN Contemporary: A zoom lens by Sigma for APS-C cameras, 18-50mm f/2.8. A tiny constant f/2.8 standard zoom: the best upgrade from a kit lens on APS-C. Specs - Maker: Sigma - Focal length: 18-50mm (zoom) - Maximum aperture: f/2.8 - Made for: APS-C sensors - Mounts: Sony E, Fujifilm X, L-Mount, Canon RF - Stabilised: no - Autofocus: yes What it frames like - On APS-C (Sony E, Fujifilm X, L-Mount): ...

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