I have the Nikon 70-200mm f2.8VRII and a Zeiss 135mm f2 manual focus lens. Although the latter is different from the Nikon 135mm f2 DC, the Zeiss lens is a very sharp lens, dare I say sharper than my Nikon lenses.
Due to the focus breathing, the Nikon 70-200mm at 200mm has an equivalent of...