(Leupold) What qualifies as a reflective target?
The rangefinder emits pulses of light. These pulses of light “reflect” or bounce off the target and get measured back at the rangefinder. Light will “reflect” off any target, but “shinier” and “flatter” surfaces will be more reflective and targets that columnate light (road signs, etc) will reflect the farthest. Dark and porous targets will absorb the most light and be challenged to range long distances. Many people think rocks are reflective, but most rocks are very porous and have a low “reflectivity.”