The Shadowquest delivers the industry's highest light gathering optics to find and identify game in low light. Steiner's Diamond Night lens coatings increase your odds for success. It Sports-Auto-Focus lets you focus each eyepiece to your vision once, then keeps images razor sharp from 20 yards to infinity. No more chasing focus on moving objects. The Steiner Lumiclip glows with just enough light to easily locate your binoculars in the darkest hours. Military ruggedness, precision and performance provide more than half a century of battle-proven reliability and built to perform in the toughest conditions.