I'm wondering how much weight I might be able to save by getting a new pack. I have a LowePro photo trekker (I think). It weighs 6.5 lbs. It's a bit small for what I want to carry. I have 3 lenses currently and I'm adding another. A 5x7 camera and the usual stuff. I carry a tripod as well as the film holders in a MC photo case on the outside.