Bushnell Laser Range Finders Technology and Glossary


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Bushnell Laser Range Finders Technology and Glossary

A laser rangefinder is a distance-measuring instrument that uses laser technology to calculate the distance to targeted objects. Accuracy is +/- 1 yard, and the distance is displayed instantaneously on a built-in, through-the-lens Liquid Crystal Display.

Laser Range Finders Glossary of Terms

A. Targeting Modes

Scan
The Scan mode allows you to pan across the landscape while viewing a continuously updated LCD display of the distances between you and the targets you scan with the viewfinder.

Rain
This feature compensates for precipitation to guarantee an accurate distance measurement through rain or snow.

Zip
Zip allows you to accurately measure longer ranges (beyond 150 yards) when looking through foreground clutter like brush or branches.

Reflector
This feature increases the maximum measurement range for most highly reflective objects.
Laser Range Finder Display

Laser Rangefinder Features:

B. Meters/Yards
You can quickly choose between these standard measuring units with a simple press of a button.

C. Reticle
The distance to objects targeted in these crosshairs will be displayed on the Distance Readout with the press of a button.

D. Battery Indictor
Flashes when battery power is low.

E. Target Quality Gauge
Gauge indicating amount of energy pulses being received back from the target.

Through-the-lens LCD Display
Bushnell® Yardage Pro® rangefinders are fast and easy to use because everything you need to know is displayed on our built-in, through-the-lens LCD (Liquid Crystal Display).

How a Laser Rangefinder Works
Bushnell's Yardage Pro rangefinders use an invisible, eye-safe Class 1 Laser beam (as classified by the FDA) which is "bounced" off distant objects with the press of a button. Then, the rangefinder's high-speed digital clock measures the time it took for a laser beam to reach a target and return to the unit. Next, using advanced digital electronics, the rangefinder instantly calculates the distance within + / – 1 yard and shows the range in either yards or meters on a through-the-lens LCD Display. The entire process is so fast that less than a second elapses between the time you press the button to generate a laser beam to the time the exact range to your target is displayed.

Reflectivity of Target Types
Because rangefinders "bounce" a laser beam off the target in order to take a measurement, their range is partially determined by the reflectivity of the target. In other words, hard or "reflective" targets – like a rock cliff or semi-truck – can be measured at greater distances than soft surface targets – like a deer. Ranges for moderately reflective targets, like trees, fall somewhere in the middle. Most experienced hunters will use their rangefinder to frequently estimate ranges to near and distant landmarks before they actually encounter a game animal. By "pre-measuring" ranges to spots where a trophy is likely to appear, they can concentrate on making an accurate shot when the moment of truth arrives.

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