A hand positioner device for an extra-oral imaging system can be coupled to the cephalometric mount between the collimator and the cephalometric sensor. The hand positioner device is attached and detached from the cephalometric mount without using tools. In one embodiment, a hand positioner device for an extra-oral imaging system can have an adjustable level of attachment. In one embodiment, a hand positioner device for an extra-oral imaging system can be repeatedly mounted in a plane parallel to an imaging plane of the cephalometric sensor.
