Sigma MC-21 adapter with Canon EF 40mm f/2.8 STM Lens on S1R


New member
Does anyone have experience with the Sigma MC-21 adapter with a Canon EF 40mm f/2.8 STM pancake-lens on a Panasonic S1R? I am particularly interested if the autofocus function is maintained or if the lens turns into a manual focus only lens. The lens currently sells for Aus$ 219.