I was thinking of strapping on my tripod, a padded cooler of film holders, a padded toolbox containing a couple of lenses, and a jug of gatorade. I don't have a box or container to store my B&J 8x10 cameras in yet, so your question is still valid for that aspect of it. I could easily strap the toolbox I use for my 4x5 Speed graphic to the backpack, but that's pretty easy to carry without a backpack and can hold camera lenses and film.