Laser Rangefinders - Tech Talk

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 builtin, through-the-lens LCD (liquid crystal display).

How Bushnell Rangefinders Work

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 takes for the laser beam to reach the 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 – such as a rock cliff or semi-truck – can be measured at greater distances than soft surface targets – such as a deer. Ranges for moderately reflective targets and 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 game animal is likely to appear, they can concentrate on making an accurate shot when the moment of truth arrives.

Selective Targeting Modes

Rain – This feature compensates for precipitation to guarantee an accurate distance measurement through rain or snow.
 
Reflector – This feature increases the maximum measurement range for most highly reflective objects and is built into all of our rangefinders.
 
Scan – SCAN across the course while viewing a continuously updated LCD display of the distance between you and your target.
 
Bullseye™ – Geared for close-range use, this mode acquires the distances of small targets and game without inadvertently measuring background target distances. When more than one object is acquired, the closer of the two objects is shown on the LCD display.
 
 Brush™ – Ignores the foreground, such as brush, boulders and tree branches, and provides distances on the LCD display to background objects only. 

Angle Range Compensation (ARC) Targeting Modes

Bow – Provides true horizontal distance from 5 to 99 yards.
 
Rifle – Provides bullet drop/holdover data in inches from 100 to 800 yards.
 
VSI™ (Variable Sight-In) Feature – Now available on the new Legend 1200 ARC, this Rifle Mode feature allows you to set your holdover/bullet-drop information for your rifle’s zero – select between 100, 150, 200 and 300-yard sight-in distances for deadly accurate information at the push of a button. Measurements can be displayed in MOA or inches, and VSI also provides shot angle information from-90° to +90°.