Newcon Optik Binoculars Newcon Optik Binoculars User Manual

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6.5 Using the reticle to calculate distance
To determine the distance to the target use the formula:
D = H/K,
where
D – distance to target in km,
H – estimated height of the target in m,
K – vertical angle of the target in mil.
First, estimate the height (or width) of the target, then
measure target’s horizontal (vertical) angle and calculate
the distance.
For example:
Assuming an image of an adult human figure has a
vertical angle of 10 mils and its height is 1.70m we can
calculate the distance to it:
L=H/K=1.7/10=0.170 (km) = 170 (m)
6.6 Measuring distance directly using the reticle
If reticle of your binoculars has an additional scale shown
at Fig.7 distance to a target may be measured directly.

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