$50 · Minolta/Sony 50mm 1.7 af lens

Autofocus prime lens for Sony dslr not the nex or a7 system. A mount not E mount. An easier way to think about it, the end of Minolta predates the beginning of mirrorless. It follows that Minolta lenses would work with sony dslrs due to the requirement of longer flange distances. 44.5mm vs 18mm. The fancy lens adapters you buy for your mirrorless extend the lens out to a distance probably equal to the space taken up by a mirror. Go figure.