>>3260904>e-mount>most complete native lens lineup for mirrorless cameras (excluding m43 and its tiny sensor)>full autofocus support for a-mount lenses back to 1985>good autofocus support for most common Canon lenses>passable autofocus support for Nikon G and E type lenses>passable autofocus support for m-mount lenses and anything. that can be adapted to m-mount>best focus aid support for manual lenses (almost everything can be adapted) on the market outside of a split prismIf you are coming from Nikon with a lot of autofocus Nikon lenses, yea, the Df is an awesome little body. Coming from anywhere else? E-mount is the way to go.