Buy the Techart Pro adapters on Amazon (return period, no warranty): http://sdp.io/atap Buy the Techart Pro adapters directly from the source (1-year warranty): http://sdp.io/tap I LOVE the look and feel of vintage lenses... but SOMETIMES I don't want to manually focus. Manual focusing takes longer, which means I sometimes miss the best moment. Manual focus also requires two hands, so I can't do it while (for example) walking my dog. The Techart adapters do something truly amazing - they take almost any vintage lens, including lenses for Leica M, Nikon F, and Canon EF, and add autofocus capabilites to them when connected to your Sony E or Nikon Z mirrorless cameras. It works, and it's life-changing. Now, you can give your grandparent's old lenses a new life. Or you can shop inexpensive lenses at KEH (http://sdp.io/keh coupon NORTHRUP-1) and expand your creativity without giving up autofocus. Get the generation II Techart Pro adapter for Leica M to Sony E-mount or Leica M to Nikon Z-mount. If you're not adapting Leica M lenses, get a dumb adapter for that mount to Leica M. For example, you might get a dumb (non-electronic) Nikon F to Leica M adapter (as I show in this video) or a Canon EF or FE to Leica M adapter.