Steiner 7×50 Military/Marine Binoculars

Description

Maximizing low-light throughput on unstable sea decks, the Steiner 7×50 Military/Marine Binoculars yields a 388.5-foot field of view at 1000 yards (7.4-degree actual). The massive 7.1mm exit pupil and 16mm eye relief stabilize rolling vistas. A long 66-foot minimum focus limit prevents close-range gear or bird inspection in tight coves.

High-contrast multi-coated optics feed high-density BaK-4 Porro prisms, maximizing photon gathering and three-dimensional stereoscopic depth across water. The Makrolon polycarbonate chassis is sheathed in oil-resistant black NBR rubber armor, measuring 8.1 by 6 by 2.7 inches at 36.0 oz (1021 g). Submersible and nitrogen purged, it utilizes Sports-Auto-Focus individual helical ocular adjusters, flexible fold-down rubber eyecups, and front tripod adapter threading.

Key Features of Steiner 7×50 Military/Marine Binoculars

Built for commercial sailors, offshore fishermen, and coastal search teams who require passive target identification in heavy chop. The large 7.1mm exit pupil matches fully dilated human pupils in pitch darkness, keeping shoreline contours visible in starlight.

• 7x magnification paired with 50mm objective lenses producing a 7.1mm exit pupil
• High-density BaK-4 Porro prisms delivering superior stereoscopic depth on open water
• Anti-reflection fully multi-coated optics providing high light transmission
• 388.5 ft field of view at 1000 yd (7.4-degree actual angle)
• 16mm eye relief with soft fold-down rubber eyecups
• Sports-Auto-Focus system providing continuous depth of field from 66 feet to infinity
• Nitrogen-purged Makrolon polycarbonate chassis with NBR rubber armor
• Submersible waterproof construction weighing 36.0 oz with front tripod threading

Porro Prism Optics & Low-Light Marine Physics

Traditional Porro prisms bypass the internal phase-shift errors typical of roof designs, channeling maximum light straight to your eyes. Multi-coated lens surfaces cut through marine glare and coastal haze, resolving unlit buoys and approaching vessels across dark water with high contrast.

Makrolon Body & Sports-Auto-Focus Handling

Individual diopter rings on each eyepiece calibrate the optic to your vision once, keeping everything sharp from 20 meters to infinity without fiddling with a central knob. The Makrolon shell provides military-grade impact resistance, while the NBR rubber armor resists fuel and saltwater corrosion.

• Sports-Auto-Focus eliminates the need to adjust focus on moving vessels in heavy sea states
• Nitrogen-pressurized housing resists saltwater corrosion and prevents internal lens fogging
• Flexible fold-down rubber eyecups shield eyes from wind and stray peripheral illumination

Steiner Heritage Lifetime Warranty & Marine Package

Steiner protects this marine binocular with their lifetime Heritage Warranty, providing repair or replacement coverage for the life of the product without requiring receipts. The complete factory package contains the Steiner 7×50 Military/Marine Binoculars, padded neck strap, durable carry case, objective lens covers, rain protection cap, and an instruction manual.