The Zeiss Victory RF 8x54 Binocular Rangefinders combine a precise laser rangefinder and ballistic computer with a view that will take your breath away. Zeiss never fails to include the best quality glass and coatings in their optics, and the Victory RF is no exception. T* coatings on FL lenses and an Abbe-König prism system give the best possible resolution, brightness and color fidelity while removing sources of eye fatigue like chromatic aberration and distortion. These 54 mm lenses are especially useful during dawn and dusk where maximum light gathering ability is critical. The laser rangefinder in this binocular instantly delivers distance measurements of reflective objects over a vast range of 10-2500 yds with the push of a button. The measurement has a ±1 yd margin of error depending on lighting conditions and the target's degree of reflection. The most advanced feature of this device is the way its ballistic computer works in tandem with the Zeiss Hunting App. You can set up personalized ballistic profiles within the app on your mobile device and import up to 9 of them to the Victory RF via Bluetooth! The ballistic computer then utilizes a profile you select, combines it with environmental factors like temperature and air pressure, and calculates the best settings for BDC (bullet drop compensation).