The SIG SAUER OSCAR6 HDX PRO Spotting Scope takes your glassing to new heights with OmniScan Optical Image Stabilization technology that uses gyroscopic stabilization to cancel out unwanted shaking and vibrations that can blur an image especially at higher magnification. OIS technology ensures your target remains sharp, even when conditions get rough. The OSCAR6 HDX is built with SIG's most advanced HDX PRO glass system, featuring ED (Extra-low Dispersion) lenses and prisms to significantly reduce ambient glare while improving light transmission, especially during critical low-light periods at dawn and dusk. SpectraCoat ultra-wide broadband, anti-reflection lens coatings reduce surface reflections across the entire visible spectrum for even more light transmission. LensArmor abrasion-resistant lens coatings provide enhanced durability. The OSCAR6 operates up to 50 hours on 2 AA batteries (included) and features an integrated ARCA-SWISS base for direct mounting to compatible tripod heads. The OSCAR6 is 100% waterproof and fogproof to IPX7 standards. Mfrs. lifetime guarantee. OmniScan Optical Image Stabilization HDX PRO Optical System for enhanced light transmission SpectraCoat ultra-wide broadband, anti-reflection lens coatings reduce glare LensArmor lens coating resists abrasion and enhances durability Up to 50 hours of operation on 2 AA batteries (included) 100% waterproof and fogproof to IPX7 standards ARCA-SWISS base for direct mounting to compatible tripod heads