Nikon PROSTAFF 3 Laser Rangefinder Nikon has expanded its line of legendary sport optics with the addition of the new PROSTAFF 3 Laser Rangefinder, a pocket-sized tool built for precision, ranging speed and consistency out to 550 yards. The PROSTAFF 3 is the perfect size and profile for any hunt. It is easy to use in the field with a high profile display, single button control and ergonomic frame. The PROSTAFF 3 measures ranges in either yards or meters and features an automatic power shutoff after the reading has been displayed for eight seconds. With bright, multicoated 6x optics, the PROSTAFF 3 offers high-resolution images in most lighting conditions. An easy-to-view uncluttered LCD display makes ranging fast and easy, even in bright sunlight. Its compact frame weighs just 6.3 ounces, fits comfortably in a pocket or pack and can be worn on a belt without interfering with your shot. The PROSTAFF 3 features an exit pupil of 3.5 mm for maximum brightness under less-than-ideal lighting conditions. The eyepiece is adjustable, with a range of +/- 4 diopters, has 18.2 mm eye relief and has a real angular field of view of 6 degrees. The waterproof/fogproof construction makes it the ideal choice for inclement weather.