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Congratulations on your purchase of the Bushnell® Sport® 850 Laser Rangefinder. The Sport® 850 is a
precision Laser Rangefinding optical instrument designed to provide many years of enjoyment. This booklet
will help you achieve optimum performance by explaining its adjustments and features as well as how to care
for this device. To ensure optimal performance and longevity, please read these instructions before using you’re
Sport
® 850 laser rangefinder.
HOW OUR DIGITAL TECHNOLOGY WORKS
The Sport
® 850 emits invisible, eye safe, infrared energy pulses. The Sport® 850‘s Advanced Digital
microprocessor and ASIC chip (Application-Specific Integrated Circuit) 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.
RANGING ACCURACY
The ranging accuracy of the Sport
® 850 is plus or minus one yard / meter under most circumstances. The
maximum range of the instrument depends on the reflectivity of the target. The maximum distance for most
objects is 600 yards / 549 meters while for highly reflective objects the maximum is 850 yards / 777 meters.
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 90 degree
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