3. Measuring line
4. First object
5. Second object
The glass cover with the aiming lines ,is provided with notches which allow you to measure the distance from an
object when the distance between the target and another visible object on the same level of the observer on the
horizontal line of the glass .
10 notches is 0.9cm,each notch is 1/9cm,the distance between eyes and
the Aiming line is 12cm.
For example ,if the distance between two objects is 36m and the notches
on the glass are 12 .
400m is the distance between you and the object.
The simple formula is
1200 X 36m( distance between two objects)
9X 12(quantity of the notch)
Of course ,if the distance between two objects is 36m,and and the notches on the glass are 12,and the other object
is some distance from you on the same level ,and the notch is 18. 36/12*18=54m