The very next day after receiving the Fotodiox Sony Alpha to Sony Nex lens adapter I found a Sony branded one, the LAEA-1, on the Precision Camera used shelves so I bought that one too. Today I put my LAEA-1 on my Sony Nex-7 and put a 35mm 1.8 DT lens on that. Then I went out for one of my long, Sunday afternoon walks. About an hour into the walk I came across a small group of people at 6th Street and Brazos who were painting each other's faces and I asked them if they'd mind me taking a few photographs. Of course they were more than happy to oblige.
I used the lens and adapter combination in the same way I would normally use the Nex 7, minus the autofocus. I keep describing the Sony LAEA-1 as not having autofocus capability and I keep getting corrected by sharp eyed readers who are quick to let me know that, technically, the LAEA-1 will autofocus with most of the recent and current Alpha lenses. I am here to tell you that while the reader/correctors may be technically correct no one in their right mind would describe the painful process of LAEA-1 try-to-focus as true AF. Let's just say that if you have infinite patience you could use the Sony adapter in the AF mode and eventually you might have a frame creep, with great hesitation, into focus. Of course your chances are better if you are in bright, bright light (say a daylight scene supplemented with an 18,000 watt HMI for fill) and a focusing target with more detail than a ten million piece jigsaw puzzle... But why stress over it when the Nex 7, in combination with the 35mm 1.8 DT lens, does an amazing and quick job of assisting you in manually focusing with focus peaking?
I'm probably just responding to the newness of the process but I'm really enjoying the pleasures of manually focusing my photographs. It seems to also give me back more control over my sense of composition. I'm not always starting from top dead center in order to get and hold a focus lock. The focus peaking works over the entire frame.
So have I found out anything new by using the Sony Nex7 with an adapter and an Alpha lens? Yes. I've found that the Sony Nex 7 becomes the most responsive camera you can imagine because you'll never have to wait for focus lock. The lens info even shows up in the exif info in Lightroom. Just don't think you'll be enjoying laser fast auto focusing. It's not in the cards for the economy model adapters.