Hey All! I ACTUALLY use Sony Gear too!! ;-)
Ol'Don--where's the "official" info?...I have no idea. Sorry.
catmando--Manual is definitely better for exposure control--even in ApPriority mode, you're still letting the camera do the thinking and it can be pretty dumb sometimes (Trust me though, I get lazy a lot!...and use Amode...)
Dewberry--You're right about the a100 and a700 being set to ignore the lack of a lens. Works fine and I've never had trouble.
Here are a couple of previous threads re:Sonys...
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lensbaby.com]
[
lensbaby.com]
[
lensbaby.com]
Hope this helps!
If you have any questions, feel free to PM me--I shoot with a100 and a700.
Johnny Crabcakes
"Failure is the key to success;
Each mistake teaches us something."
--Morihei Ueshiba