Hi, This is my first post so please be kind. :· I'm looking for a way to analogically expose my pictures at site. I'm guessing that the only way to achieve something like that on a digital Canon is to have some type of lens that allows you to manually and analogically expose at least one of the factors, say time value or diaphragm aperture. Also it should be a somewhat short mid range zoom lens? Like a 17-80mm. Is there a lens like that? I have a Canon 7D.