One month with a Kodak 2D 8x10 and a 12" Ilex Paragon and I`m hooked... I`d like to get my kit as lightweight as possible, but the lens/shutter is almost as heayy as my camera!.. What are my alternatives for lighter or newer lenses? I like the 305mm Paragon, but wouldn`t mind something around 400mm either. Will a modern lens be "that" much better? Or could you suggest other old lenses that will be good, but not as heavy.