Is the tamron sp af 17 50mm f 2 8 xr di ii ld aspherical if good for portraits?

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From Tamron SP AF 17-50mm f/2.8 XR Di II LD Aspherical (IF): Tamron SP AF 17-50mm f/2.8 XR Di II LD Aspherical (IF): A zoom lens by Tamron for APS-C cameras, 17-50mm f/2.8. A classic, inexpensive f/2.8 standard zoom for APS-C DSLRs. Specs - Maker: Tamron - Focal length: 17-50mm (zoom) - Maximum aperture: f/2.8 - Made for: APS-C sensors - Mounts: Canon EF, Nikon F, Pentax K - Stabilised: no - Autofocus: yes What it frames like - On APS-C (Nikon F, Pentax K): like 26-75mm on full frame; f/2.8 gives about ...

From Tamron SP AF 17-50mm f/2.8 XR Di II VC LD Aspherical (IF): Tamron SP AF 17-50mm f/2.8 XR Di II VC LD Aspherical (IF): A zoom lens by Tamron for APS-C cameras, 17-50mm f/2.8.

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