Luna’s SX3 monocular is a great value with a compact, lightweight and water-resistant design and features a high quality optical system, which allows for close-up focusing and more precise adjustments on any viewing distance. One-touch controls and light indicators provide the user with visible power and IR illuminator working indication. The unit can also be adapted to the SLR cameras with the help of Luna’s LN-CAS camera adapter system. Magnification: 3x, Objective Lens: 50mm, Field of View: 12 degrees, Focusing Distance: 3m (10ft) to infinity, Viewing Distance: - 200m (650ft), Power: 1x3V Lithium (CR123), Operating Time: 36 hrs, 6.8" x 2.2" x 2.9" ov.