Hello there,
Some time ago [as I think I've already mentioned in this forum

] I left my K10D out, all night, in a thunderstorm [after a rather boozy BBQ].
The next morning I found that the camera was fine but that the standard lens had water ingress & was knackered. Since then I think I've managed to dry out the 'damp' lens [just stuck it on a radiator for a couple of nights]... & it now seems to be OK.... of course only time will tell?

Cheers
John