I love the potraits shots with the really deep field of view, They look very sharp Is that done with something like a 50mm lens?
Prime lenses (fixed focal length) are typically preferred for those kind of shots. The faster aperture (f/1.4, f/1.8, f/2.8) of these lenses will help immensely. That's not to say that a decent DOF cannot be achieved with other lenses however....
