I'm looking at purchasing either of these lenses used. It looks like they're around the same price. As you can see from my signature, I am covered from 17mm to 105mm. The primary use for both of these lenses would be cityscape and landscape purposes. Although the 24L would serve as a walk around lens in addition to star/night sky lens. The 70-200 would mean I'm covered up to 200mm and since the filter thread for both is 77mm, I'm able to use my assortment of CPL, ND, and graduated ND filters. The 70-200mm f/2.8 IS version is not an option since it's out of my price range. I'm leaning a bit more toward the 24L, but I would love to hear opinions specifically for those that use/used both lenses for city/landscape photography.

