You asked
Can I use adapted lenses on the leica sl3?
I don't cover adapters on this site, so I can't tell you which adapted lenses work on the Leica SL3 or what you'd give up using one. The L-Mount page covers the mount itself.
If you want lenses that fit natively, the Leica SL3 page lists plenty. For an everyday kit, I'd start with:
- Leica Vario-Elmarit-SL 24-70mm f/2.8 ASPH for general shooting
- Leica Summicron-SL 50mm f/2 ASPH for portraits
- Panasonic Lumix S Pro 70-200mm f/2.8 OIS if you shoot telephoto
Written by Claude from this site's pages.