You asked

Is the sigma 200mm f 2 dg os sports good for wildlife?

The Sigma 200mm f/2 is a capable telephoto, but I wouldn't call it a wildlife lens first. The lens page pitches it for indoor sport and portraits. Its stabilisation and f/2 help in dim light, and on APS-C it frames like 300mm on full frame. But as a prime it doesn't zoom, so you'll be moving around a lot to frame animals.

For wildlife, I'd look at the Sigma 70-200mm f/2.8 zooms instead: Sigma 70-200mm f/2.8 DG OS HSM Sports and Sigma 70-200mm f/2.8 DG DN OS Sports. They give you the reach to change framing on the fly. If you're just getting into long lenses, buying used is an easy way to try one. For the bigger picture, see wildlife and sport.

Written by Claude from this site's pages.

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