Sony has released updated firmware for NEX E-mount cameras, FW v5.0 which updates the bodies to accept the new LA-EA2 Alpha Phase Detect AF lens adaptor. The update works for NEX-3, NEX-5, NEX-C3, NEX-VG10 and the professional video Sony NEX-FS100U.
Prior to this firmware update, the LA-EA2 only worked with the NEX-5N , NEX-7 and NEX-VG20. With the LA-EA2, a micromotor driven Phase Detect AF system is built-in, which allows the camera to focus with all A-mount AF lenses.
Key points of the new firmware update include Micro AF adjustment, when using this adaptor, for M-AF/SAL/SAM lenses, and the ability to assign AF points on the 15-point module, from the screen display.
Download the new function manual (from Ver.04 to Ver.05)
For UK/Europe etc cameras (this site does not appear to have the VG-10 update and is slightly muddled):
NEX-5 (Windows) Firmware update , 15/12/2011
NEX-5 (Macintosh) Firmware update , 15/12/2011
NEX-3 (Windows) Firmware update , 15/12/2011
NEX-3 (Macintosh) Firmware update , 15/12/2011
NEX-C3 (Windows) Firmware update , 15/12/2011
NEX-C3 (Macintosh) Firmware update , 15/12/2011
For USA/Canada cameras:
Here is a “funny” instruction under 8, which at first confused me.
“If the current version is “Ver.1”, “Ver.2”, “Ver.3, or “Ver.4”, click “Next”.
Note: If the current version is “Ver.4”, your camera does not need this update. Stop the USB connection, click “Finish”, then remove the battery or disconnect the AC adaptor briefly, and then power on the camera again.”
I submit that Sony have made a mistake and should have stated “… is Ver.5, your camera…”. Maybe I could apply for a job as copy checker.