1. A vision system, comprising: a first imager in a first housing having a first image sensor, a display, and a first orientation sensor configured to track an optical axis of the first imager; a second imager in a second housing having a second image sensor and a second orientation sensor configure to track an optical axis of the second imager; and a processor configured to receive scene data from the second image sensor and orientation data from the first and second orientation sensors, the processor configured to superimpose an aim point determined from the second sensor in the display when the optical axis of the first imager is known with respect to the optical axis of the second imager.