You asked
Is the laowa 15mm f 2 zero d good in low light?
The Laowa 15mm f/2 Zero-D is built for dark scenes. f/2 is fast for an ultra-wide, and it's sold as a fast ultra-wide for astro, so it lets in plenty of light.
Expect to work for it, though. It has no stabilisation, so use a tripod or a fast shutter speed. It's manual focus only, so focus by hand and use your camera's magnification or focus peaking.
Pair it with a full frame body. A bigger sensor collects more light at the same f-number, so you get more from that f/2 (see What a bigger sensor buys you). Good options from its list:
Full details are on the lens page.
Written by Claude from this site's pages.