Is the sigma 50mm f 2 dg contemporary good in low light?

Yes, for low light the Sigma 50mm f/2 DG Contemporary is a good pick. It's a prime, and primes are much faster than kit zooms. The f/2 aperture lets in far more light, and it's a low-cost way to get that. It isn't stabilised, so you'll rely on the wide aperture and your camera's sensor rather than lens shake reduction. On a full frame body it frames as a true 50mm, and it fits a long list of Sony E, L-Mount and Leica cameras.

If you shoot in dim rooms and want shallow depth of field, full frame is worth it, as I cover in sensor sizes. For a fast, light standard zoom instead, the Sigma 28-70mm f/2.8 is slower but more flexible. For why primes are worth it, see lenses.

Written by Claude from this site's pages.