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Alpen Optics  |  SKU: 77

Alpen Rainier 10x42 ED HD Binoculars

$1,399.99 $1,699.99

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Alpen Rainier 10x42 ED HD Binoculars


  • 10x Magnification
  • 42mm Objective Lens Diameter
  • 341' Field of View at 1000 yards
  • Extra Low Dispersion Glass
  • Phase-Corrected & Dielectric Coated
  • Compact BAK4 Roof Prism
  • Lightweight Open-Bridge / Dual-Hinge Design
  • UBX Fully Multi-Coated Optics
  • SHR Metallic Coated
  • PXA Phase Coating
  • Short 6.5-Foot Close Focus Distance
  • Long Eye Relief
  • Nitrogen-Filled, Fog and Waterproof
  • Large Knurled Center Focus Wheel
  • A-lock Diopter System
  • Cleaning Pen, Carrying Case, Neck Strap and Rubber Ocular Rainguard Included

The Alpen Optics 10x42 Rainer ED HD Binoculars is designed to deliver power and performance. It is ideal for outdoor enthusiasts who require accurate colors and crisp clarity in all light conditions.

10x magnification provides detailed observations and its 42mm objective lenses improve light-gathering ability, even in challenging conditions.

To withstand the rigors of daily outdoor use, the optical tubes are nitrogen filled and O-ring sealed to be waterproof and resistant to internal fogging.

All Rainier binoculars push the limits of optical perfection. All optical components receive our exclusive UBX multi-layer coating for maximum light transmission. The extra large BAK-4 prisms are coated with over 60 layers of Alpen’s SHR metallic and PXA phase coatings to deliver the best brightness, clarity and color fidelity. Large diameter lens elements throughout the optical system provide enhanced field of view and eye relief for easy viewing.


  • 10x magnification brings objects in close for detailed observation
  • 42mm objective lenses improve light-gathering ability, even in challenging conditions such as at dawn and dusk, without the bulk or weight of larger objectives
  • Compact roof prisms help to produce a thinner housing size without compromising performance
  • BAK4 prisms deliver a round exit pupil and a crisp and clear image with limited edge distortion
  • PXA phase correcting prism coatings eliminate internal interference to improve contrast and clarity
  • Metallic SHR prism coatings on internal reflective surfaces maximize light transmission while limiting internal diffraction
  • Extra-low dispersion (ED) glass objective lenses correct chromatic aberrations and fringing to deliver bright and clear high-contrast and high-resolution views with accurate color representation
  • UBX anti-reflection multicoatings improve light transmission, color rendition, and contrast
  • Short 6.5-foot close focus distance is ideal for making detailed observations of small subjects like birds, bees, insects, flora & fauna at feeders and flower beds
  • Wide apparent angle of view minimizes the appearance of distracting hand-shake
  • Spacious 341' field of view at 1000 yards


  • Open-bridge/dual-hinge configuration reduces weight without sacrificing strength
  • Large slip-resistant center focus wheel is easy to manipulate in cold and wet weather, or when wearing gloves
  • Right-eye A-Lock locking dioptric correction ensures tack-sharp views without the risk of accidentally changing your specific setting
  • Twist-up click-stop rubber eyecups for comfortable use with or without eyewear
  • 16mm eye relief reduces eye strain and increases viewing comfort
  • Comfortable 4.2mm exit pupil will cover most pupils and keep the whole scene in your view


  • Bridge design provides more gripping surface for steadier handling
  • Nitrogen-filled to be resistant to internal fogging when moving through extreme changes in weather and environmental conditions
  • O-ring sealed to be waterproof
  • Textured armoring with improve grip in cold and wet conditions
  • Standard 1/4"-20 socket accepts an optional adapter for hands-free use on a tripod
  • Front single-piece rainguard ensures the lenses remain clean with the ability to attach them to the neck strap so they won't get lost
  • Includes carrying case and neck strap
  • Weight: 29.4 oz

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Alpen Rainier 10x42 ED HD Binoculars | 77 | 637148100776

Alpen Rainier 10x42 ED HD Binoculars

$1,399.99 $1,699.99




42 mm | 1.6"

Focal Length


Focal Ratio


Field of View

341' @ 1000yd / 113.2m @ 1000m


Extra low dispersion (ED) glass

BAK4 roof prism

UBX fully multi-coated

IPX7 waterproof, nitrogen-filled fog proof

5.8° angle of view

6.5' (2m) minimum focus

16mm eye relief

4.2mm exit pupil

Barrel Size



10.1 x 7.9 x 3.4 inches


1.8 lb | 29.4 oz
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