Praktica LRF-7 User manual

The PRAKTICA LRF-7 features target seeking technology, allowing you to quickly and easily zone
in on your target. Weighing less than 200g and designed to fit in the palm of your hand, the LRF-7
is the perfect range finding accessory. It features an adjustable eyepiece, 7x magnification and an
impressive 7.1° angular field of view.
The LRF-7’s advanced processor results in a quick and accurate reading every time. Distance is
calculated by measuring the time it takes for each pulse to travel from the rangefinder, to the
target and back again.
Getting Started
Inserting the Battery
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5
6
7
1
2
1. Laser Output
2. Laser Receiving Lens
3. Mode Switching Key
4. Power Button
5. Observation Eyepiece
6. Dipoter Adjustment
7. Battery Cover
In order to use your new rangefinder, you will need to insert a CR2-3V battery. Slide the battery
cover down to reveal the battery compartment. Insert the battery so the negative end is in
contact with the spring, as shown below. The attached ribbon should be under the battery.
Once the battery has been inserted, put the cover back on.
To remove the battery, pull the ribbon towards you. If you intend on storing your rangefinder for a
long time, please ensure the battery is removed.
CR2-3V Battery
LRF-7 Laser Rangefinder Manual

4. Target Seeking
Press the POWER button to turn the rangefinder on. Next align the aiming circle onto your target
and press and hold the POWER button. Once target seeking has been activated, an aiming circle
will appear over your chosen object and the distance will appear in metres or yards. This distance
will remain on your display until you press the POWER button again while focusing on another
object.
5. Compensated distance explained
The compensated distance technology built into this rangefinder automatically adjusts the
distance displayed in the viewfinder based on the target being level or at an incline/decline. The
measured angle (4) in the viewfinder indicates the angle of the target in relation to your position.
Measurement is accurate within -1/+1° of an angle.
Target Seeking not activated Target Seeking activated
1. Start
The PRAKTICA LRF-7 Laser Rangefinder has two buttons; a POWER ( ) button and a MODE
button. Press the POWER button for roughly one second and your rangefinder will turn on.
2. Diopter Adjustment
To focus on a subject, turn the diopter ring left or
right while looking through your rangefinder.
LCD Display
3. Changing the measuring unit
To change the measuring unit from M(metres) to
Yd(yards), hold down the MODE button for two
seconds.
Operating Instructions
Measured Angle

6. Scanning
Hold the POWER button down and scan across the target area. The data on the LCD screen will
change with the target.
7. Automatic Power Off
Your rangefinder will automatically turn off after 20 seconds of inactivity.
Laser Rangefinder Specification
Magnification 7x
Objective Lens 25mm
Field of View @1000m 126m
Field of View @1000yds 378ft
Angular Field of View 7.1°
Min-Max. Distance 6-600m
Lens Coatings Fully Multi-Coated
Measuring Time 0.5 - 1 Second
Distance Measure Accuracy 1/-1 M/Y
Battery CR2-3V
Scan Mode Yes
Target Seeking Function Yes
Dimensions 103x39x72mm
Weight 184g
Important Notes
• The PRAKTICA Laser Rangefinder does not emit a visible beam. It uses a non-destructive
infrared pulse laser then reflects from the visible target back into the optical receiver.
• Although this unit has a very low transmission rate and is harmless to the human eye, we
recommend avoiding direct eye contact with the laser output.
• The maximum measuring range of the device depends on the target reflectivity, colour, surface
finish, size and actual shape.