Originally posted by jremick While I've seen quite a few videos of people pouring water over the K-5, I'm wondering if it would survive a brief dip in a pool of water or stream?
The physics of the two are
completely different.
Pouring water over a K10D, K20D, K-7 or K-5 will merely leverage surface forces or, in the case of directly above a seal or gasket, the force of gravity, to push water into the camera. The angles are acute and limited, along with the force.
Submersing something in water puts far more force, and from all angles, from the water on water itself. That's why things are rated for depth, because of the force. A completely different design is required, entirely. The lens would definitely take on water, and the body very likely as well, just from several seconds.
And yes, I have an engineering degree (basic fluid dynamics, even elementary, 2nd year statics explains much of the logic), but this should also be high school level physics knowledge (for those who paid attention).