I bought the Nex-6 for its ability to utilize glass I already own, using the Lensturbo/Speedbooster adapters that also retain the original focal lengths.
Are you able to autofocus with these adapters? If not, how is manually focus using the screen on the NEX?
I would like an adapter that will allow me to use our Nikon 18-135mm lens on my NEX, but still have the ability to use autofocus.
BTW, if I had Fishmonger's camera skills, I would carry a 'big' camera too!
For Nikon glass, it is all manual focus with the Nex (and my DSLR for the most part - most of my lenses are manual). The Nex has some pretty great focus peeking (edges of areas in focus highlight in a bright color in realtime as you focus). It is is much better than on the Nikon full frame body and works like a charm. The more difficult part is that you also have to do fully manual exposure with the Nex. First focus with the lens wide open, then stop down (twist a ring on the agapter), then meter, set exposure and shoot. The live histogram in the viewfinder makes that actually pretty easy, too.
Wide angle lenses don't need much focusing anyway, but at 135mm you need to be quite accurate. I grew up with manual focus and still use it 90% of the time, from shooting landscapes with a fisheye or race cars with a 600mm - it actually works better sometimes to be in full control of those things and not trust Sony or Nikon to know best. And shooting manually allows me to use lenses from 25 to even 50+ years ago, as they haven't changed and still work just fine on today's big Nikons and the Sony Nex. The glass hasn't changed very much since then, nano coated or not. Most of my images from the Sierra are taken with lenses from the 1970s that are a pleasure to manually focus, fine machines from a era when things were built to last, and quality was important. I would hate to have to manually focus your 18-135mm - that plastic focus ring is really only a backup solution
