Opticron 8x42 Oregon 4 PC Oasis Binoculars

BH #OP8X42O4PCO • MFR #30766
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Opticron 8x42 Oregon 4 PC Oasis Binoculars
Key Features
  • Phase-Corrected BAK4 Roof Prism
  • Anti-Reflection Multicoated Optics
  • Wide & Immersive Field of View
  • Comfortable Eye Relief and Exit Pupil
Ideal for glassing needs on land and water, the Opticron 8x42 Oregon 4 PC Oasis Binoculars feature proprietary phase-correcting prism coatings and reflective prism surfaces that maximize light transmission and boost clarity and contrast. The prism coatings are complemented by anti-reflection fully multicoated optics which provide bright, clear, high-contrast views with accurate color rendition. 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. Their chassis is nitrogen filled and O-ring sealed to be resistant to internal fogging and waterproof to withstand extreme weather, with textured palm pads on the armor to ensure a secure grip in cold and wet weather.
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$189.00
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Opticron Oregon 4 PC Oasis 8x42 Overview

From Manufacturer

Ideal for glassing needs on land and water, the Opticron 8x42 Oregon 4 PC Oasis Binoculars feature proprietary phase-correcting prism coatings and reflective prism surfaces that maximize light transmission and boost clarity and contrast. The prism coatings are complemented by anti-reflection fully multicoated optics which provide bright, clear, high-contrast views with accurate color rendition. 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. Their chassis is nitrogen filled and O-ring sealed to be resistant to internal fogging and waterproof to withstand extreme weather, with textured palm pads on the armor to ensure a secure grip in cold and wet weather.

Optical Performance
  • Moderate magnification brings objects in close for detailed observation while preserving the wide exit pupil and long eye reliefe
  • 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
  • Phase correcting prism coatings improve contrast and clarity
  • Oasis-C+ prism coatings reduce internal light loss for clearer views
  • Anti-reflection fully multicoated optics improve light transmission, color rendition, and contrast
  • Field of view approaches wide angle to provide an immersive experience without the need to move your head side to side to see the whole terrain
  • 367.5' field of view at 1000 yards
Use and Handling
  • Closed bridge configuration provides a solid and stable platform for the internal focusing mechanism
  • Large slip-resistant center focus wheel is easy to manipulate in cold and wet weather, or when wearing gloves
  • Right-eye dioptric correction ensures tack-sharp views even if your eyes aren't perfect
  • Three-position twist-up rubber eyecups for comfortable use with or without eyewear
  • 1/4"-20 mounting socket allows the binoculars to be mounted on a tripod using an optional adapter for hands-free, fatigue-free, and vibration-free use
  • Exceptional eye relief provides a generous eye box that reduces eye strain and increases viewing comfort
  • Wide exit pupil will cover pupils as they open and fully dilate in low and fading light to keep the whole scene in your view
Construction Details
  • Combination of aluminum and polycarbonate used in the construction reduces weight without sacrificing strength
  • Nitrogen-filled to be resistant to internal fogging when moving through extreme changes in weather and environmental conditions
  • O-ring sealed to be waterproof
  • Black armor provides a slip-resistant grip
  • Textured palm pads improve grip in cold and wet conditions
  • 1-piece eyepiece rainguard and tethered objective caps ensure they won't get lost
  • Includes carrying case and neck strap

Opticron Oregon 4 PC Oasis 8x42 Specs

Key Specs
Prism Type
Roof (BAK4)
Magnification
8x
Objective Lens Diameter
42 mm
Angle of View
7° (Actual)
56° (Apparent)
Field of View
367.5' @ 1000 yd / 122 m @ 1000 m
Exit Pupil Diameter
5.25 mm
Prism Type
Roof (BAK4)
Performance
Magnification
8x
Objective Lens Diameter
42 mm
Angle of View
7° (Actual)
56° (Apparent)
Field of View
367.5' @ 1000 yd / 122 m @ 1000 m
Minimum Focus Distance
7.5' / 2.3 m
Exit Pupil Diameter
5.25 mm
Eye Relief
22 mm
Interpupillary Adjustment
57 to 74 mm / 2.2 to 2.9"
Diopter Adjustment
-3 to +3
Focus Type
Center
Features
Fogproof
Yes: Nitrogen Filled
Environmental Resistance
Water-Resistant (Unrated)
General
Dimensions
5.8 x 4.9 x 2" / 14.7 x 12.5 x 5.2 cm
Weight
24.2 oz / 685 g
Packaging Info
Package Weight
2.12 lb
Box Dimensions (LxWxH)
7.6 x 6.9 x 2.8"

Opticron Oregon 4 PC Oasis 8x42 Reviews

Excellent value for economy-class binos

By Steve
Rated 5 out of 5
Date: 2026-05-20

I went with these because of where they landed on the graph (price X rating) in the Cornell Lab review of "affordable 8x42 binos." They are full-featured (lens coatings, nitrogen-filled) and have a decent FOV and close-focus length relative to other options. I didn't see where one could hit those marks for any lower price. I have no practical experience with binoculars otherwise, but birds do indeed look bright and sharp through these. The case is make from pleather-like material and doesn't close out the weather (just a flap, no zipper).

Light binoculars with clear vision

By Molly
Rated 5 out of 5
Date: 2026-02-18

These are my first pair of nice binoculars as an amateur birder, and I'm so grateful I chose these. Truly blown away by the quality of these for the price.

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