I'd actually consider the 24/2.8 AIS. I have the optically similar non-D autofocus one, which was good with the right kind of film (i.e. Velvia), crushingly disappointing on the D200 and mediocre on the D7000, but, get this, really very impressive on the D800 as long as you navigate around the limitations in the corners at wider apertures. I think something about this lens disagrees with heavy anti-aliasing or thick emulsion. Also, with the floating elements, it's a complicated design so I can easily imagine some samples being off due to wear and tear.