TM 5-6675-322-14
O p t i c a l r a n g e f i n d e r.
( 1 ) F o c u s r a n g e f i n d e r.
(a) Place 6 X 18 monocular telescope into mounting.
(b) Lock telescope by pressing down firmly on lock button.
(c) Look through telescope and adjust focus ring until vision is
s h a r p.
( 2 ) M e a s u r e r a n g e.
(a) Observe yellow and blue images.
9-46
g .