You asked

Is the nikon z 20mm f 1 8 s good in low light?

Yes, with a caveat. The 20mm f/1.8 S is a fast wide prime, so it gathers far more light than a typical kit zoom and works well for night skies and dim interiors. It isn't stabilised, though, so for handheld shots in low light you'll rely on high ISO and a steady grip.

For the best low-light results, pair it with a full frame body. On APS-C it frames like 30mm, and the f/1.8 gives less shallow depth of field there. My picks from the catalogue are the Nikon Z6 II, the Nikon Z8, and the Nikon Zf. If you want even more light for low-light work, the Nikon Z 35mm f/1.2 S is a faster option at a different focal length. For the bigger picture, see is full frame worth it?.

Written by Claude from this site's pages.

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