I don't agree with nikon here. The E should be good for Studio work. There are a lot of guys using med format with no aa now for studio. You have more control in a studio. I would suggest shooting tethered so you can see moire and fix it in camera, but that is ideal anyways. Location portaits is a whole other gig and may be a bigger pain than it's worth. If studio and landscapes are the camera's main jobs the E should be great. Also, how often do you shoot at f1.4 in the studio? I agree about the diffraction issue. According to rep I talk to it's more of a problem on ultra-wides. I assume thats because f2.8 is smaller aperture opening on a 14mm than a 100mm. I'm not much of a landscape guy but again, how often are you shooting your 14mm at f22? Diffraction was happening on your 700 also, but you didn't really see it much because it was still out resolving your sensor. To me that means that even though f22 will be softer than f8, it's still sharper than your d700 at f22. Time will tell. I suspect that a lot of pixel peepers will start focus stacking.