User's Manual

25
Distance measurement
Using the MIL crosshairs for distance
measurement (telemetry system)
With the MINOX BN 7x50 C II DSV you can use the
analog reticle plate (crosshairs) to determine the
distance of observed objects. Distance measurement
can be carried out with the aid a simple equation, as
long as the height or length of the observed object are
known with sufficient accuracy: in practice the size
(height/length) is usually known because the observed
objects are mostly people, buildings or vehicles.
Example for calculating the distance
The height of the lighthouse is 80 meters. The value
read off the reticle plate is 6.7.
This is then calculated as follows:
100 x 80 meters divided by 6.7, resulting in a distance
of 1,194 meters.
Elevation angle = Vertical angle
Azimuth angle = Horizontal angle
Distance (in m) =
Height of observed object (m) x 100
Elevation angle of observed object
Distance (in m) =
Length of observed object (m) x 100
Azimuth angle of observed object