Leupold GX-2c User manual

GX-2c
RANGEFINDER
OPERATING INSTRUCTIONS

TABLE OF CONTENTS
About Leupold..........................................01
Accuracy ...............................................02
How GX Rangefinders Work ..............................02
GX Rangefinder Specifications............................06
Operation ..............................................07
Using Prism Lock........................................22
Trouble Shooting ........................................23
Cleaning/Maintenance ...................................24
Warranty/Repair ........................................24
French Language Instructions ............................26
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INTRODUCTION
Congratulations on your purchase! Your new Leupold® GX-2c
rangefinder has been crafted by our engineers and designers to
outperform the competition and provide you with years of solid
performance on the course. To ensure proper function for the life of
the product, please review the following instructions detailing the
correct use of your GX digital laser rangefinder before operating.
The GX-2c is a revolutionary device that uses a ballistic algorithm
and advanced digital electronics to guarantee accurate ranges
on the course. The DNA® (Digitally eNhanced Accuracy™) engine
easily ranges the longest par 5 using advanced signal processing
techniques, while the True Golf Range™ (TGR®) algorithm provides
hit-to distances accurate to less than a yard on high and low
angled shots. Additional features include PinHunter 3 technology,
Club Selector, Prism Lock, and an inclinometer.
The GX-2c provides the same incredible durability, ruggedness,
and speed of our other GX rangefinders, while delivering
improved accuracy and efficiency so you can golf with total
confidence, shot after shot.

1
ABOUT LEUPOLD & STEVENS, INC.
It’s a decidedly American story: in 1907, a young German immigrant
named Fred Leupold set up a one-man shop at 5th and Oak Streets in
Portland, Oregon, repairing optics for surveying equipment. The small
company survived the First World War and the Great Depression, however,
it was the Second World War that would forever change the company.
Working with the U.S. Army on a riflescope and the Navy on optics
for use aboard ships, the engineers at Leupold learned the secrets of
waterproofing and durable construction that would completely change
the world of sports optics.
Leupold & Stevens, Inc. is still family-owned, though the focus has turned
from land surveying to helping people across the globe survey their
environments with innovative, high-performance optics and accessories.
Leupold optics are renowned for their unchallenged ruggedness, absolute
waterproof integrity, and their vastly superior optical quality. More than
a century of observation and optical experience has gone into every
product we produce, and we think the results are well worth the extra effort
required to achieve this level of quality.
In true American style, the philosophical foundation laid in our early years
has served us well as we’ve grown and changed over the decades. In fact,
the firm’s founder established the clarity of purpose that we see at Leupold
& Stevens today:
“We solemnly promise never to let down on quality, the customer is entitled
to a square deal.” - Markus Friederich “Fred” Leupold

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ACCURACY
The ranging accuracy of the GX-2c rangefinder is +/- .5 yard/
meter. The maximum effective range depends upon a number
of factors including lighting conditions and air quality, but the
most important factor is the reflectivity of the target. For most
objects, the maximum distance is 500 yards, while for highly
reflective targets, distances of 700 yards can be obtained.
HOW IT WORKS
The Leupold GX rangefinders emit a series of invisible, infrared
energy pulses that reflect off the selected target back to the
optical unit. State-of-the-art circuitry and precision computing
circuits calculate the distance instantaneously by measuring the
time it takes for each pulse to travel from the GX rangefinder to
the object and back.
Surface texture, color, size, and shape of the target all affect
reflectivity, which in turn affects the maximum range of the
rangefinder. As a rule of thumb, brightly colored targets are
much more reflective than darker targets, with black being
the least reflective color. A shiny surface is more reflective
than a dull surface. Smaller targets are more difficult to range
than larger targets. Light conditions, haze, fog, rain, and other

3
MAXIMUM RANGE
CONDITION GX-2c
Reflective Target (yd/m) 700/640
Trees (yd/m) 600/548
Pin (yd/m) 400/365
environmental conditions can all affect ranging performance.
Any factor which degrades air clarity will reduce the maximum
effective range. Bright light shining directly on the lenses
reduces the effectiveness, producing shorter maximum ranges
than those possible on darker (overcast) days. The steadier the
GX-2c unit is held, the greater the maximum distance.

4
SAFETY AND OPERATION
PRECAUTIONS
The Leupold GX-2c 6x23mm rangefinder employs an eye safe
laser in its operation. Even so, there are a few precautions that
are important to remember.
• Do not depress the POWER button while aiming at a human
eye or while looking into the optics from the objective side.
• Do not leave the GX within the reach of small children.
• Do not take the product apart as it has a self-protection
device in the electronic control module and may cause an
electric shock.
• Do not attempt to use any power source other than a CR-2
battery (or equivalent) — the GX is designed to prohibit
accessing any other external power supply.
• Caution: Use of controls or
adjustments or performance of
procedures other than those
specified herein may result in
hazardous laser radiation exposure.
CLASS 3R LASER PRODUCT INVISIBLE LASER RADIATION
AVOID DIRECT EYE EXPOSURE This product complies with IEC
60825-1: 2014-05 Ed. 3.0 and complies with FDA performance standards
for laser products except for deviations pursuant to Laser Notice
No. 50, dated June 24, 2007.
Po:<5.14mW. λ:895-915nm. tW:10-20ns.
LEUPOLD & STEVENS, Inc,
14400 NW Greenbrier Parkway, Beaverton, OR 97006

5
• When you see the display through the eyepiece, please be
aware that the product is active and emitting an invisible laser
and the laser aperture should not be pointed toward anyone.
The unit will produce an audible “click” when the power
button is activated to notify the user that the rangefinder is
emitting an invisible laser.
• Read this instruction manual in its entirety before using
this rangefinder. If the product is used in a manner not
specified by the manufacturer, the protection provided by the
equipment may be impaired.
(Display as seen through the eyepiece)
GX-2c Activated
Y
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G
R

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SPECIFICATIONS
The GX-2c digital laser rangefinder provides a variety of useful
modes to tailor performance to the conditions you experience
on the course. Features are identified on the following pages.
GX-2c
Magnification 6x
Inclinometer Yes
TGR® (True Golf Range™) Yes
7 Selectable Aiming Reticles Yes
Quick Set Menu Yes
Line-of-Sight Distance Yes
Yards/Meters Yes
Fog Mode Yes
Flag Lock Yes
Prism Lock Yes
Scan Mode Ye s
Battery Life >6000 Actuations
Weight (with battery) 6.8 oz.
Dimension (Inches) 4" x 2.5" x 1.5"
Low Battery Indicator Yes
Warranty 2 Years
Waterproof Yes

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OPERATION
QUICK SET MENU™
*GX-2c display shown with all possible characters visible
in
cm
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