You asked

Is the panasonic lumix s1 ii good in low light?

Yes, the S1 II is a good low-light body. It has a full frame sensor, and on this site full frame is the big step up for dim scenes. At the same framing and f-number, it collects more light than APS-C, roughly a stop more, so images stay cleaner at high ISO.

The lens does as much work as the body, so pair it with something fast. From the S1 II's lens list, I'd look at:

Written by Claude from this site's pages.

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