Alpen Optics 8x42 Rainier ED HD Binoculars

The Rainier line features anti-reflection fully multicoated extra-low dispersion (ED) glass lenses that complement the phase-corrected and dielectric coated BAK roof prisms. This combination of glass, prisms, and coatings produce Alpen s high-definition optical system that delivers bright, clear, high-contrast views with accurate color rendition free from distortion or color fringing across its wide field of view. The 42mm objectives gather all the light needed to keep views crisp and bright in challenging conditions, such as at dawn and dusk, without being overly bulky or cumbersome.

Optical Performance

• Moderate 8x power magnifies images while preserving a wide field of view and exit pupil with a long eye relief for easier, more comfortable viewing
• 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 6.6-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 393 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
• Long 18mm eye relief reduces eye strain and increases viewing comfort
• Wide 5.25mm 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 ounces