Firefield 10×42 Binoculars FF12020 Black

The Firefield 10x42 binocular delivers 10x magnification with a 42mm objective for clear, long-range observation. It uses a BaK-4 roof prism and fully multi-coated optics to provide improved light transmission and contrast. Nitrogen-filled and weatherproof, the binocular is built for reliable performance in variable field conditions and features a rubberized armor for secure handling and impact protection.

Key Specifications

• The optical magnification is 10x.
• The objective lens diameter is 42mm.
• The prism type uses BaK-4 Roof.
• The optics are Fully Multi Coated.
• The binocular is rated Weatherproof.
• The exit pupil diameter is 4.20mm.
• The eye relief measures 14mm.
• The field of view is 305 ft @ 1,000 yds.
• The short focus distance is 16.40 ft.
• The weight is 20.50 oz.

Designed for dependable optical performance and everyday field use, this Firefield binocular balances magnification and light-gathering for clear observation in a variety of conditions. Its weatherproof construction and rubber armor make it suitable for travel and outdoor observation where durability and secure handling matter. The straightforward feature set suits users who want reliable optics and practical protection without unnecessary complexity.