I mention that it's cheap?-----------------------------------------------------------------CONSIt does not have OSS and hence why it's slow on the A7 (not a problem on the A7RII)Not the quietestMotor noise could be a problem for quiet videos---------------------------------------------------------------------------------------------Why you should buy this

but my problem lies with focusing both manual and auto

For an experienced photographer, its flaws aren't really a problem

But after I used it for a while, I would say it's a really problem, sometimes very painful and made me feel very sad to miss those opportunities

Focus is a touch slow, but it no problem for portraits and landscapes