Thus, all of the tilt brackets will tilt in a synchronized fashion, and {HEAD ~ the angle} of the light path of the microscope housings with respect to the common vertical axis of {TAIL ~ all} of the microscopes will change the same amount 
Thus , all of the tilt brackets will tilt in a synchronized fashion , and { HEAD ~ the angle } of the light path of the microscope housings with respect to the common vertical axis of { TAIL ~ all } of the microscopes will change the same amount
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH