I have A7R and recently got A6000. I have been playing around with the Face Recognition (FR) and Eye AF features and here are what I found. The features work the same on both cameras, tested with FE 35mm f2.8 and FE 55mm f1.8 lenses. Eye AF is best for static portraits. It might not work on moving subjects. To use Eye AF, assign it to a button, press and hold, a small green square will appear over one eye, then press shutter to take the shot. If you wanted to focus on the other eye, press and hold again. Because I take lots of portraits, I assigned Eye AF to AEL button on both cameras. If you used wide-open apertures (1.4, 1.8, 2.0, etc), then focusing is critical and Eye AF is a great feature to have. I prefer to use Eye AF over manual focusing, even with the great peak level and magnifier functions. Eye AF works in all focusing area: Wide, Zone, Center or Flexible Spot. Eye AF works even if Face Recognition (FR) is OFF and it doesn't matter which Focus Area was selected. As long as you press the assigned Eye AF button, camera will focus on the eye, even if you're using Flexible Spot S and the spot is not anywhere near the eyes. The only difference when FR is ON is that the camera will auto-adjust exposure for the face. If FR is OFF, no priority is given to face exposure. Eye AF works well with FR ON. FR will also work in all Focus Area mode, as long as the face detecting square touched any area of the selected focus area. When FR is ON, camera displays a square over the face. If the square border is gray, i.e. it doesn't touch focus area, then when you press to focus, it will not focus on the face. If the square border is white, ie. it touches focus area, then it will focus on the face. If you used Wide focus area, then the square should always be white because most of the screen is covered by focusing points. Items 1 & 2 are the surprise discoveries for me because all Internet reviews & recommendations I've found so far indicated that Wide & FR are required for Eye AF to work. Updated: Regarding item #2, it might be true that even if FR is OFF, the camera still has to be able to detect a face in order for Eye AF to work. It just doesn't show the face detection square if FR is OFF. It seems face detection usually focuses on the eye and we don't need to use Eye AF button. One way to check that is to set focus mode to DMF, turn on Peak level, then use face detection focusing and look for the Peak highlights. They are usually dead on the eye. Any other suggestion and recommendation are always welcome.