Bushnell Legend 1200 ARC Manual De Usuario página 5

HOW OUR DIGITAL TECHNOLOGY WORKS
The Legend 1200 ARC ™ emits invisible, eye safe, infrared energy pulses. The Legend 1200 ARC'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 Legend 1200 ARC 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 850 yards/777 meters while for highly reflective objects the maximum is 1200 yards/1097 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 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.
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