ENGLISH
Thank you for purchasing your new Bushnell® Bone Collector 850 Laser Rangefinder.
This manual will help you optimize your viewing experience by explaining how to utilize the rangefinder's features and how to
care for it. Read the instructions carefully before using your rangefinder.
WARNING: As with any laser device, it is not recommended to directly view the emissions for long
periods of time with magnified lenses.
INTRODUCTION
Your Bushnell® Bone Collector 850 is an ultra compact, premium laser rangefinder with the latest Digital Technology, providing
precise range readings from 5-850 yards/5-777 meters. Measuring 1.3 x 4.2 x 2.9 inches, the 6-ounce Bone Collector 850
delivers extremely fast target acquisition, with +/- 1 yard accuracy to the maximum range. The Bone Collector 850 laser
rangefinder features Bushnell's patented ARC™ (Angle Range Compensation with Ballistics Intelligence), a new Ranging Engine
for faster, more consistent response and readings, a Vivid LCD display with higher light transmission and water resistant (IPX4)
construction.
*Note: You will get both longer and shorter maximum distances depending on the reflective properties of the particular target and
the environmental conditions at the time the distance of an object is being measured. The color, surface finish, size and shape of
the target all affect reflectivity and range. The brighter the color, the longer the range. White is highly reflective, for example, and
allows longer ranges than the color black, which is the least reflective color. A shiny finish provides more range than a dull one. A
small target is more difficult to range than a larger target. The angle to the target also has an effect. Shooting to a target at a 70
degree angle (where the target surface is perpendicular to the flight path of the emitted energy pulses) provides good range while
a steep angle on the other hand, provides limited ranging. In addition, lighting conditions (e.g. the amount of sunlight) will affect
the ranging capabilities of the unit. The less light (e.g. overcast skies) the farther the unit's maximum range will be. Conversely,
very sunny days will decrease the unit's maximum range.
HOW OUR DIGITAL TECHNOLOGY WORKS
The Bone Collector 850 laser rangefinder emits invisible, eye safe, infrared energy pulses. The Bone Collector 850 rangefinder's
microprocessor results in instantaneous and accurate readings every time. Sophisticated digital technology instantaneously
calculates distances by measuring the time it takes for each pulse to travel from the rangefinder, to the target, and back.
PARTS GUIDE
MONOCULAR
OBJECTIVE LENS
LASER TRANSMIT/RECEIVE
LENS
BATTERY ACTIVATION / BATTERY LIFE INDICATOR
Before first use: Remove the battery compartment cover by lifting the battery cover tab and then
rotating the cover counter-clockwise. Remove and discard the "Remove Battery Disk" sticker
covering the positive battery terminal, then replace the battery cover. NOTE: It is recommended
that the CR2 3-volt lithium battery be replaced at least once every 12 months. Insert it into the
compartment negative end first.
2
POWER/FIRE BUTTON
MONOCULAR EYEPIECE
BATTERY COMPARTMENT