Hi all, I just came back from Phuket last week where I brought the EM5. Sad to say it did NOT survive a medium shower in the afternoon and the camera has died from water damage from rain. Olympus said the damage was extensive and comment that that kind of damage can only happen if the camera has been submerged in water. It has not submerged it in water. I am very disappointed that it did not even survive a medium shower with the "weather proof lens 12-50mm" attached with a filter in front of it. Flash was not mounted. and the flash cover and the accessory port was covered.
For those who are interested, the repairs are quoted in the range of $7xx. I am just extremely disappointed that the camera though marketed to be weather sealed, but wasn't able to survive a simple shower. I did check the seals around the lens to see if it might be any particles that got stuck on the rubber ring and allowed water in but found nothing.
Unfortunately I did not test the camera in any shower with the flash hotshoe attached. Hopefully someone else doesn't find out the hard way.
I have used Nikon D70, D2H, Canon 350D, Nikon D3, D700, D7000 in rain without so called weather-proof lenses. The lighter-weight cameras in light rain for hours on end, no issues. However with this weather-sealed camera using weather sealed lens, it died on the 2nd exposure to rain. Luck? Fate?
Either way, you have been warned. Just treat your camera with more care and don't let "weather-sealed" on the specification sheet lull you into exposing the camera to rain or splashes of water.