Last time I was at Disney I had my 24-105 and it was generally fine. There were definitely times I wished I had a longer lensbut was glad not to be toting it. If it were during the day I'd say thef4 is wouldn't be too bad to haul around.
What ever you do invest in a good strap likeep the rapid strap. It makes hauling a camera much more comfortable.


then again o wait wrong forum 
the wife said she would rather not worry about pictures
which is not the normal response for her. She wants to be able to run me around the park they have been in all day to show me the highlights.
