The Mark 4 12-40x60mm tactical spotting scope with the Tremor 4 reticle gives you the brightness and clarity necessary for positive target identification in any conditions. Built to survive shocks, blows, drops and impacts, it's not only tough, it's also 100% waterproof and fogproof. Boasting Leupolds Professional-Grade Optical System, it offers unmatched light transmission thats designed to outperform in the most challenging lighting conditions. Its industry leading glare reduction provides a clear image in harsh, direct light, while the resolution and clarity will meet the demands of any professional guide or shooter in the field. A built-in 1/4-20 rotatable tripod adapter port makes it easy to mount to a tripod.