Adjustment guide for the screws of the mirror:
Shots made on the reference point (top-left in this case)
rarely moves when adjusting the screws. So we try to
adjust the shot on the adjustable point (bottom-left in
this case) by the screws and move the point toward the
reference point until they overlap.
7.6.2 Second Reflec ting Mirror
Goal: Make the 2 dots shot from
the middle-left and the middle-right
overlap.
Directions:
1
Take a piece of tape and put it on the metal ring
in front of the third mirror.
65