Nothing wrong with owning a more lenses then you would normally use at once but when I travel, or really for just about anything, I pick 2 or 3 to take with me. I do plan to get a nice point and shoot for an upcoming trip where I will still take my DSLR but with just a minimal kit.
I do plan to get a 400L 5.6 and a 1.4x next to use on my 60D as a wild life/bird lens. Can't wait to try it out.
Voightlander makes one but its manual focus.



