Is the sigma 17 40mm f 1 8 dc art good in low light?

The Sigma 17-40mm f/1.8 DC Art is a fast zoom, and that f/1.8 aperture is what helps in dim light. It gathers far more light than a typical kit zoom at the same focal length. On APS-C it frames like 26-60mm on full frame.

It has no image stabilisation, though, so in dim rooms you'll be relying on the wide aperture and higher ISO rather than slower shutter speeds. If you shoot mostly in the dark, a fast prime is still the cheaper route to light. A 50mm f/1.8 is the usual pick, as the lenses guide explains. Sensor sizes covers why light and lenses matter more than the sensor for most people.

Written by Claude from this site's pages.