I have seen some conversations on this topic earlier but I have not been able to draw a good conclusion. This summer I am heading out cross country and will be visiting some of the famous national parks (Badlands, Yellowstone, Glacier, Crater Lake) as well as some other scenic areas. I'm looking for a good lens addition to take with me for capturing some of the beauty I will see in this once in a lifetime trip. I currently have EPL-1 Olympus m.Zuiko 14-150 / 4-5.6 Panasonic 20/1.7 Adapted Nikon 55 / 3.5 Macro (manual focus) I am considering either purchasing or renting a lens. For an expensive lens like the Panasonic 7-14 I would probably end up renting, but for something like the Olympus 9-18 I could swing buying. FWIW, I will be carrying a tripod and/or gorillapod most of the time. TIA for all suggestion.