Great optics, good focus
The reviews say it is supposed to resolve 50 lines and Sony purported super fast auto focus - I'll say the optics are true but the focus is not. In terms of resolution power, the reason I wanted something so psycho sharp was because I bought one of the monochrome retrofit Sony cameras and pixel level resolution is very noticeable for most lenses. This holds its own even without a reducer - that's great! My only need is that I specifically bought the Sony because I figured Sony body and Sony lens would be the fastest, but honestly it's faster but not incredibly faster than my Canon lenses attached with a megabones adapter, and no where as fast as the original Sony/Zeiss 55mm 1.8.
So, if you want just about the best portrait length 85mm out there, sure, I can't find anything with sharper optics nor focus. But just wishing we humans had faster focus.
Verified purchase: YesCondition: Pre-owned