Is the sigma 18 50mm f 2 8 dc dn contemporary good for portraits?

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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): ...

From Sigma 56mm f/1.4 DC DN Contemporary: Sigma 56mm f/1.4 DC DN Contemporary: A prime lens by Sigma for APS-C cameras, 56mm f/1.4. An 85mm-equivalent portrait lens on APS-C, and a 112mm one on Micro Four Thirds.

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