You guys know how much I love my NEX as a portrait camera, and digital back for all kind of fancy and fun legacy optics. However, do I shove it daily in my purse to go run errands like I did with my GX-1 ? Nope. Why is that ? As much as I try to like it, the AF on the NEX sucks. Sorry if the word is harsh and seems overly severe, but it does. Whoever has shot a fast DSLR or last gen m4/3 cam can testify NEX'AF is left in the mud compared to those. I've lost countless shots traveling with my 5N+18-55 combo. I've sold the new 16-50 that came with my 6 because I felt it really didn't bring much improvement in either the AF speed of IQ department. So basically, I have no small AF lens that I can trust to perform fast to use my NEX as a walk around cam, and that's a big issue. I'm gonna try the Sgma 30/2.8 as a walk around lens, knowing it's not fast enough for my taste, and very unsure about AF, since feedback on it is contradictory... Any ideas ?