Milky Way Time Lapse by David H.
Here are the settings David H. used on his NEX-6 with the help of PlayMemories Camera Apps.
Camera settings: 16mm, ISO 1600, f3.5, 30sec.To extend the battery life I made a cover to put over the EVF to trick the camera. This turns off the light on the back of the main screen and conserves a lot of power. I did this using the Time Lapse app on 40 second intervals (10 seconds longer than exposure time to allow the camera to process images). Still trying to figure out if you can use the Time Lapse app in RAW format.
Here is a video showing the NEX / Time Lapse App interface.
NEX PlayMemories Camera Apps Time Lapse
The Time Lapse App is available for $9.99 from the PlayMemories Camera App store. PlayMemories Camera Apps are compatible with Sony NEX-5R and NEX-6 cameras.