I took mine for a spin the other day. I've had it 10yrs now but it's only done maybe 10k actuations. It was while I was officiating at a cyclo-x and I even used the pop-up flash for a few sidelit competitors. Popped the 40stm on it with a little metal Hoya hood and got some cracking images (for the level of the 10D and my abilities, that is!! ).