Barr & Stroud 8x42mm Series-4 ED Binocular

Barr & Stroud 8x42mm Series-4 ED Binocular

Barr & Stroud 8x42mm Series-4 ED Binocular

B&H # BA8X42EDBS4B MFR # OLBSS4842ED-US 70521
Special Order
Expected availability: 7-10 business days

Product Highlights

  • Extra-Low Dispersion Glass Lenses
  • Phase-Corrected BaK4 Prisms
  • Fully Multicoated Optics
  • 6.5 ft Close Focus Distance
  • Open Bridge Configuration
  • Polycarbonate Housing
  • Center Focus Wheel
  • Nitrogen-Filled Fogproof / Waterproof
  • Click-Stop Rubber Eyecups
  • Rubber Armored Housing
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  • 1Description

The 8x42 Series-4 ED Binocular from Barr & Stroud combines a fully multicoated lens system and phase-corrected BaK4 prisms to create a color-faithful high-transmission optical path that is well-suited for low light performance. This 8x optic features a 6.2° angle of view and has the ability to focus within seven feet, equipping the Series-4 ED for close to mid-range observations like birding and hunting. In addition to their image quality, this binocular also has a long 19mm eye relief and twist-up rubber eyecups with multiple click-stop settings that can provide a comfortable viewing distance even for eyeglass wearers.

Complementing the high-transmission 8x42 optical path is a nitrogen-filled fogproof housing that is submergible to almost five feet for three minutes. An open-bridge design helps to evenly balance the weight of the binocular and make it easier to handle with one hand than other common bridge configurations. A lightweight polycarbonate housing, armored with slip-resistant rubber, equips Series-4 binoculars to handle demanding weather conditions. The combination of high-transmission optics, user-friendly features, and a weather-sealed housing make the Series-4 ED binocular ready for a wide range of outdoor viewing tasks.

Optical Performance
  • 8x magnification, 42mm objectives
  • Extra-low dispersion glass, fully multicoated optics
  • BaK4 roof prisms, phase-corrective coating
  • 6.2° angle of view
  • 19mm eye relief
  • +/- 4 diopter correction
  • 6.5 ft minimum focus distance
Use and Handling
  • Rapid center focus wheel
  • 6.5 ft to infinity in one rotation
  • Twist-up rubber eyecups with multiple click-stop positions
Construction Details
  • Nitrogen-filled fogproof and waterproof
  • Ergonomic finger rest indentations
  • Open-bridge configuration
  • Rubber armored body
  • Forest green finish
  • 23 oz weight
Prism Type Roof
Magnification 8.0x
Objective Lens Diameter 42mm
Angle of View 6.2° (actual)
Field of View -1.0'; @ 1000 yd / -1.0 m @ 1000 m
Minimum Focus Distance 41.9'; / 12.8 m
Exit Pupil Diameter 5.1  mm
Eye Relief 18.8  mm
Interpupillary Adjustment 56 - 74 mm / 2.20 - 2.91"
Dioptric Correction ±4
Focus Type Center
Tripod Mount Yes (Adapter Optional)
Dimensions 6.1 x 5.0 x 2.0" / 15.5 x 12.7 x 5.1 cm
Weight 23 oz / 652.05 g
Packaging Info
Package Weight 2.5 lb
Box Dimensions (LxWxH) 7.8 x 6.6 x 3.4"
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