I need to tell you this silly story how my trusty 5d mk3 died. I love the mk3 and it's an awesome camera, I had it as a main body and I really trusted it to get the job done when I need it. But my perspective on the 5D mk3 changed recently. I was shooting a wedding a few weeks back and at the ceremony my mk3 just started going crazy. The mirror kept flapping, shutter didn't respond and it gave me an error 20 screen. I thought ok, maybe the mirror motor died since I know error 20 is a mechanical problem and a friend had the same problem with the motor. So I changed to my old 5Dc I had as a backup and shot the rest of the wedding with it. When I came home I tried the mk3, put the battery in and turn the power on, as it turned on it gave me a high temp. warning and that's when I knew something was wrong so I puled the battery out and waited till Monday so I can take the camera to a repair centre. Before my trip to the centre I tried to turn on my camera again as I had some hope that the high temp. warning wouldn't show up, boy was I wrong. The camera was dead, no respond, nothing. After a few days the centre called me with bad news. My mk3 has water damage all over the main PCB, DC/DC power board and the pentaprism unit. I was shocked! It never went near water plus it has some degree of weather sealing. I could not believe what they said to me. I started to think of every possible solution how could water enter my mk3. Finally I figured it out. Apparently since it was a hot sunny day and i needed to be in a suit as my work uniform, sweat from my shirt magically got into the camera body and fried the electronics. Yeah I know,it's funny but it's true. Canon weather sealing can withstand light rain and snow, but hang it around your neck for 2 hours on a hot day- Dead. I'm really disappointed as I had a 5Dc and a 450D on much harder weddings in the middle of summer and they still work. Maybe I had bad luck or something, but still I think that a pro level camera like a 5D mk3 should work fine in these situations. Now I need to pay 750 euro to get my camera fixed, drive 2 countries to get a canon service centre that has some parts for the mk3 and be without my main body for a month or more till they fix it. My gold CPS card doesn't mean anything. I'm really disappointed in Canon right now and feel frustrated that you can be without your camera for a month because of humidity from a sweaty shirt...
I hope my story will help someone in the future as clearly the 5D mk3 isn't that pro grade as we think it is. Before this event if somebody told me that a mk3 can die like this, I would laugh at them. Now I don't know if it's funny or sad.