Steiner 2640 M830r 8×30 Binoculars Mil-Radian Reticle

Steiner's 2640 M830r 8x30 binoculars are built to rigorous military specifications and are the standard binocular for many armed forces worldwide. They combine a precision mil-radian ranging reticle with a floating prism and a Sports-Auto focus system for fast, dependable observation. The Makrolon polycarbonate housing with NBR long-life rubber armoring and nitrogen sealing provides a lightweight, rugged chassis and fog-proof clarity across temperature extremes.

Key Specifications

• The binoculars provide 8x magnification for detailed observation.
• The objective lenses measure 30mm.
• The field of view is 392 ft @ 1,000 yds.
• The exit pupil diameter is 3.80mm.
• The eye relief measures 20mm.
• The weight is 18.70 oz.
• The focus system is Sports-Auto.
• The short focus distance is 66 ft.
• The prism system is Floating.
• The lenses are Multi-Coated.

Designed for practical field use and range estimation, the M830r balances compact handling with durable construction. Its nitrogen-purged, pressure-sealed optics resist fog and moisture in a wide range of environments, and included accessories — neck strap, objective cover, and rain protection cap — make it ready for extended observation tasks and demanding outdoor use.