As most of you who have these camera's already know, this has been a long time coming, recent rumor, and now is finally a reality...

They can be found through Sony.com, Support and Drivers, then select your camera model and operating system.

Direct Link for US a900 Firmware Update: http://esupport.sony.com/US/perl/swu...=6261&os_id=34

Key improvements:
* Adds the ability to release the shutter even when no lens is mounted on the camera.
* Expands the Exposure Compensation range to ± 5 EV.
Note: The range before the update is ± 3 EV.
* Adds a new Bracket Shooting setting to allow a deviation of 3.0 EV.
Note: The maximum deviation setting before the update is 2.0 EV.
* Improves the auto focus (AF) speed. This is especially noticeable when using a telescopic lens.
Note: The improvement varies depending on the lens used and shooting conditions.

I just ran through the update on a850 this morning without issue. Word on the street is the AF improvements are really, really nice, especially in low-light...

Enjoy!