Quick test with a Novaflex EF adapter on a Lumix S1 Prototype, the Sigma 18-13mm, a lens loved by Video professionals. This is just a demo done over tea break to see the camera's effect of Full frame versus APS-C modes. With the new Leica-mount adapted versions you should see a improvement in image quality over using the Novaflex adapter with the EF versions. Go native!
Nick Driftwood