Is the sigma 28 70mm f 2 8 dg dn contemporary good for portraits?

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From Sigma 28-70mm f/2.8 DG DN Contemporary: Sigma 28-70mm f/2.8 DG DN Contemporary: A zoom lens by Sigma for Full frame cameras, 28-70mm f/2.8. A small, light f/2.8 standard zoom. Specs - Maker: Sigma - Focal length: 28-70mm (zoom) - Maximum aperture: f/2.8 - Made for: Full frame sensors - Mounts: Sony E, L-Mount - Stabilised: no - Autofocus: yes What it frames like - On full frame (Sony E, L-Mount): as marked, 28-70mm. - On APS-C (Sony E, L-Mount): like 42-105mm on ...

From Lenses: Your first lenses: 1. A standard zoom, 24-70mm or 24-105mm equivalent. The kit zoom is fine to start. 2. A fast standard prime, a 50mm f/1.8 on full frame or a 33-35mm f/1.4 to f/1.8 on APS-C. Low light, people, food. 3. Then add for what you shoot: a telephoto zoom for wildlife and sport (wildlife and sport), a wide zoom for landscapes (landscape), or an 85mm for portraits (portraits).

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