One of the enigmas that I have noticed is when backpack hiking outdoor photographers go to great length to choose the lightest weight 4x5 large format camera they can find, then insist on using huge lenses, mounted in Copal 3 shutters, with that camera. I realize the importance of saving every ounce of weight possible when you need to pack your gear on your back and hike up hill (used to do it myself). However, you need to pay attention to the weight of all the pieces of gear, not just the camera.