Right now I am using the Canon T2i., but might get something in the future for bigger projects. I would like a lens that can hook on to any consumer priced HD camera, with some sort of adapter or converter of course. I want a lens that is in focus all the time for some of the shots I want to do, for some scripts. What type of lens and converter/adapter (I don't know what you call it, pardon my lack of terminology), to mount to whatever camera, as some lenses can. What are some good consumer priced lenses for that, if there is any?