TM 5-6675-323-14
(3) Adjust rhomboid arms and photographs so that object in left photograph is
seen by left eye and identical object in right photograph is seen by right eye.
(4) Turn mounting focus knob to obtain clear vision in right eye. Adjust
focus adjustment to obtain clear vision in left eye.
(5) Move eyepiece tubes toward or away from each other until two fields of
v i e w merge.
(Check by closing right, then left eye; field should be completely
v i s i b l e without head movement.)
b. Change Magnification.
7-12
