1. A method for changing the calibration of an imaging system comprising a plurality of imaging heads, the method comprising: adjusting the imaging of a first imaging head of the plurality of imaging heads based on a position of at least a second imaging head of the plurality of imaging heads; placing the at least a second imaging head in a first position and determining a first adjustment to be made to the imaging of the first imaging head; placing the at least a second imaging head in a second position and determining a second adjustment to be made to the imaging of the first imaging head; and determining a third adjustment to be made to the imaging of the first imaging head by interpolating between the first adjustment and the second adjustment.