Here's one my 7 year old took of me and her mam, you can clearly see her in the reflection of our glasses.......... Like father like daughter! by Georgey Mc, on Flickr
In those photos he was about 3, but he just turned 5.
He has no problem with my 5D MK II.
He turns it on, changes modes, shoots and chimps.
Reshoots if the focus or exposure is off.
I've tried to give him old cameras to use (my old 20D or old point and shoots) but he won't have them.
The little bugger insists that he has to use my best gear.