They have Extra-Low Dispersion glass lenses for color resolution and contrast, our AFMC (advance fully multi-coatings), and feature BaK4 prisms with the new ESP Dielectric Coating. They bring clarity and brightness within the reach of most enthusiasts. The tough full metal chassis is fog proof and waterproof and filled with Argon gas to prevent internal fogging and better thermal stability. The lenses are then treated externally with our XPL coating to withstand dirt, oil, and grime of constant use. Choose from three different models - each distinctly different in size so you have a scope tailor-made for your specific activity.
Objective Lens Diameter- 65 mm. Lense Coating- Advanced Fully Multi-Coated.
Field of View- 171-81 ft. Exit Pupil - 4.3-1.4 mm.
Eye Relief- 0.75-0.63. Dimension (LxW)- 11.9"x3.0". What that means is if you order. It depends on where you live.