Sigma 50mm f 2 dg contemporary vs 7artisans af 50mm f 1 8?

Both are 50mm lenses for full frame, so the choice comes down to aperture and mount. The 7Artisans AF 50mm f/1.8 is a stop faster and also fits Nikon Z, which makes it the one I'd pick for low light and shallow depth of field. The Sigma 50mm f/2 DG Contemporary is the choice if you shoot Sony E or L-Mount and want a Sigma lens. Its f/2 is still a good portrait aperture.

Neither has stabilisation, so you'll need enough light or a steady hand. If you're buying your first fast prime, the portraits page explains why a 50mm is worth having, and the lenses page shows where it fits in a first kit.

Written by Claude from this site's pages.