Ok I am taking my Canon rebel xti on my smokies hiking trip. I cannot due without and will accept the weight! I ordered a Keyhole device, looks awsome. My question is my Best lens is a 28-135 IS zoom lens. It is a bit heavy compared to my cheaper 300 standard canon zoom or my 200. I am debating taking the is lens and using a x2 adapter when needed for longer shots. I Also enjoy close up photos and Have a auto focus 50mm canon macro. The x2 on the IS lens creates a manual focus situation. I would love to go bye a 300 IS zoom ,but not in the budget at this time. Question, I am a amature what would you take with my equipment?