The 15x50 Is Aw Is Unique Among High-magnification Binoculars Because They Incorporate Canons Remarkable Optical Image Stabilizer Technology. This Revolutionary System Employs A Novel Vari-angle Prism That Instantly And Continuously Makes Adjustments To Maintain A Steady Image. Image Stabilization System Compensates For Handshaking As Well As Minute Vibrations At The Touch Of A Button. High Magnification Optics, 15x, Accommodate Wide-ranging Activities Wide, Extra-bright Field Of View From Large-diameter 50mm Objective Lens. Multi-coated Ultra-low Dispersion (ud) Objective Elements Add Contrast, Clarity And Color Fidelity Long 15mm Eye Relief For Easy Viewing Shock-and-water-resistant Construction With Non-slip Rubberized Coating.