I've just noticed what might be a potential problem with my lens mount (hence posting here; as opposed to a350 section).
When I grip the lens at the base, whilst it's mounted (I mean the part closest to the body), on any part that is fixed (i.e. not the focusing or magnification rings) it seems to have a little give in it - as if the lens were turning to come off the camera. It doesn't actually come off, of course, without releasing the lock, but there is a tiny bit of rotating movement there - I can move the lens a fraction of a mm - I can't really see it moving, but it makes a noise and I can feel a tiny bit of rotation. I don't remember it doing this previously; but since turning the lens itself whilst locked isn't something I find myself doing, really (!), it's enough to make me worried - afterall, the end of my warranty is approaching and I don't want to pay for repairs.
I had a quick look to check whether there was something wrong with the locking mechanism - I rarely have a lens off my camera, so staring into its innards is again something I infrequently do - but I noticed that the pin sticking out from the body at the 5 o clock position can be pushed up and down (not in and out, which obviously it needs to do) very gently.
I'd be grateful if anyone knows whether this is meant to be happening, or can check themselves - I wouldn't be surprised if I'm worrying about nothing but I've got to the stage where I'm terrified of finding problems after the warranty expires.
Oh yeah, I have an a350 - but I doubt it's specific, since the alpha mount is identical across the range..