High-Powered Large Eyepiece Binoculars18mm Large Eyepiece12x42 Binoculars- The 12x42 Binoculars Feature a 42mm Objective Lens Combined with 12x Magnification, is an Ideal Choice for Those Applications Where Distance Viewing in Low Light Environments is Essential. For Distance Viewing, the 12x42 Model Letting You Look Farther and See Wider. Birds in Flight, Athletes on the Sporting Field or Performers on a Stage without Move the Binoculars.Coating TechnologyFully Multi-Coated Lenses and BAK-4 Prisms-High-Quality Multilayer Coating is Applied to All Lenses and Prisms, While Dielectric High-Reflective Multilayer Coating is Applied to the BAK4 Prisms, Achieving a Bright View of Up to 92% or Higher Light Transmittance, and Natural Color Fidelity.Premium MaterialStronger/Lighter/More Agile. The Binocular Body is Made From Magnesium Alloy. Providing Optimum Strength, Impact Resiliency and Weight Reduction, the Slim Body Profile is Further Enhanced with Rubberized Panels to Provide a Sure-Grip in Any Conditions.