Not true. As I recall from what I've read, when in aperture priority one control on the top of the camera adjusts aperture, the second adjusts exposure compensation, and the control wheel on the back adjusts ISO. Similarly when in shutter priority, one top control adjusts shutter speed, the second adjusts exposure compensation and the wheel ISO. There is button on the top of the camera that sets the different modes/use of the Tri-Navi controls. The are other settings for them too.