Using The Compass - FujiFilm MARINER 7X50 WP-XL Instruction Manual

Using the Compass

The left side of the visual fi eld for the compass-equipped
7X50 WPC-XL incorporates a scale like that shown in the il-
lustration. The upper portion is used to determine the dis-
tance to or size of an object, while the bearing to the object
is shown in the lower portion. The scale uses a unit known as
a "mil", which is the angle between the ends of object one
meter long viewed at a distance of 1000 meters. Each incre-
ment is equal to 5 mils.
Reading the Scale
In order to measure distances, it is necessary to
know the size of the object.
Object size
Distance =
Scale reading
Example:
Object size: 10 m
Scale reading: 50 mils
Distance A = 10 ÷ 50 × 1000 = 200 m
In order to measure size, it is necessary to know the distance to the object.
Distance × Scale reading
Object size =
Example:
Distance: 200 m
Scale reading: 50 mils
Object size = 200 × 50 ÷ 1000 = 10 m
EN-9
Measuring Distance
× 1000
Calculating Object Size
1000
ENGLISH
(7X50 WPC-XL only)
360
Direction
90 = east
180 = south
270 = west
360 = north
360
A