You asked
Can I use adapted lenses on the panasonic lumix s1?
I don't cover adapters on the Lumix S1 page, so I can't tell you from here how an adapted lens will behave on this body. What I can tell you is that the S1 uses the L-Mount, and every lens I list for it is made for that mount, so that's the simplest route. If you want a native lens for everyday shooting, the Panasonic Lumix S 50mm f/1.8 is a sensible, easy-to-carry prime. For the full list of lenses that fit the S1, see the Panasonic Lumix S1 page.
Written by Claude from this site's pages.