a couple of months ago I wrote that I had had problems with my Canon 70D - kept getting error 20 so sent it back to Canon as it was still under a two year warranty and they replaced the shutter. A couple of weeks ago, in cold damp weather, I got the error 20 message but once the temperature had gone up a bit it worked perfectly well. Now today I have had another problem with it. This time on holiday in Kolkata, India. When I powered it up, there was a bit of condensation which I put down to coming from an air conditioned car to the heat and humidity. Waited a few minutes until it adjusted but later on, as the temperature got up to around 37 degrees, the camera began to stick. Found a workaround by switching the mode dial to the next programme and back to auto and I could actually hear the shutter release itself. This happened a couple of times. I took up the offer of an extended warranted just before the Canon one ran out and will probably be taking it back to Curry’s when I get home but my question is, has anyone else had a problem like this (with any dslr) or have I just been unlucky or unrealistic in expecting it to work in such conditions.