Button Description - Renkforce Marine-Fernglas 7x50 Bedienungsanleitung

• Adjust the focus. Look into the binoculars and aim at a distant object. Close your left eye and
keep your right eye open. Turn the eyepiece adjustment ring (5) of the right eyepiece, until
you see the object aimed at sharp in the right eyepiece.
• Close your right eye and keep your left eye open. Turn the eyepiece adjustment ring of the
left eyepiece, until you see the object aimed at sharp in the left eyepiece.
• Observe the plus/minus marking on the underside of the eyepieces and if necessary note
the set position.
• After every use, set the eyepiece adjustment ring back to the 0-Position, to avoid damage to
the eyepiece system.
It is illegal to observe other persons without their knowledge and consent.
Do not use the binoculars while moving as you could overlook and trip over
obstacles.
Moisture may build on the lenses when the binoculars is subjected to rapid
temperature change. This is normal, in warm rooms the condensation normally
disappears within one hour.
b) Distance calculation
With the numbers of the reticle you can calculate the distance to an object, if its height or width
is known. These numbers are called "mils". The measurement is performed either horizontally
or vertically (horizontal angle of sight or vertical angle of sight).
Horizontal angle of sight
The reticle consists of -40 to +40 mils. Keep one side of the object on the horizontal line and
read off the value at which the other side of the object ends. See fig. 1.
40
30
20
10
40 30 20 10
10 20 30 40
The right side of the sailing boat is at 0 and the left side at 20. The horizontal angle of sight is
therefore 20 mils.
Vertical angle of sight
Calculate the mils, as with the horizontal angle of sight. However use the vertical line, as shown
in fig. 2 (lighthouse).
40
The vertical line is at 0. Let us assume, that the vertical angle of sight is at 40, then this
produces 40 mils.
Calculate the distance according to the following formula:
L (km) = H (m) / W (mils)
L = Distance between observer and object in km.
H = Height of the object. This value must be known.
W = The angle of sight of the object measured in mils, as shown on the reticle of the
binoculars.
To perform a calculation of the distance, first determine the height of the object. Then determine
the angle of sight in mils, as indicated on the reticle. For example:
The lighthouse has a height of 12 m. The angle of sight is 40 mils. See fig. 3.
12/40 = 0.3 km (300 m). The distance is 300 m.
40
30
20
Ｐ
10
40 30 20 10
10 20 30 40
Ｐ
40
30
20
10
30 20 10
10 20 30 40
40
30
20
10
40 30 20 10
10 20
c) Display for compass and temperature
• The display for compass and temperature must be switched on with the button
see it. The display is highlighted red and is visible for approx. 15 seconds.
• The degrees measurements of the compass appear in the right eyepiece and can be
displayed by pressing the button
entered (refer to the following table for a description of the buttons). The azimuth can then
be measured from the digital compass. It indicates the azimuth of the object relative to the
observer. Every marking in the compass display indicates 1°. 0° indicates direction North and
180° indicates direction South (see fig. 3).
• To ensure a precise azimuth measurement, the binoculars must be held horizontal, while the
compass is read. The object must thereby be in the middle of the reticle.
d) Button description
Button M (3) Parameter setting
Button (2) Function button, activating temperature/compass display and switching between
both modes.
Observe the following table as overview.
Function
Fig. 1
• Activate compass and
temperature display
• Setting brightness of the
compass and temperature
display. Press button
M several times to set
different brightness levels
• Performing temperature
and compass settings
(temperature unit/
magnetic declination)
Fig. 2
• Switch to parameter
setting mode (temperature
unit/magnetic declination)
• Display parameter setting
• Save parameter and exit
setting mode
• Switch between
thermometer/compass
• Setting position parameter
(temperature unit/
magnetic declination)
(relevant parameter
flashes)
e) Tripod mount
The binoculars can be mounted on a tripod with the help of a tripod adapter. A tripod adapter
(not included in the scope of supply) must be screwed onto the thread (11) for this purpose.
North
0°
West 270° 90° East
180°
30 40
South
. If the local magnetic declination is known, this can be
button button
press briefly keep
depressed
for 2
seconds
X
X
Fig. 3
, in order to
M button M button
press briefly keep
depressed
for 2
seconds
X
X