Vanguard 8x42 Endeavor ED Glass Binoculars
Product Description:
The Vanguard Endeavor ED 8420 is a premium 8×42 roof prism binocular that delivers exceptional clarity, color accuracy, and contrast at a price point that dramatically undercuts competing ED-glass optics. Featuring extra-low dispersion (ED) glass lenses, phase-coated BaK4 prisms, and Vanguard's proprietary multi-layer lens coatings, the Endeavor ED produces sharp, high-resolution images with outstanding 92% light transmission — making it a trusted workhorse for hunters, birders, and outdoor enthusiasts who demand reliable performance in all lighting and weather conditions.
The magic behind the Endeavor ED's optical performance begins with the extra-low dispersion glass, which aligns wavelengths of light to meet at the same focal plane, virtually eliminating chromatic aberration — the color fringing that causes image blurring around high-contrast edges. The result is noticeably sharper images with truer colors than standard glass can produce. BaK4 roof prisms with Vanguard's P2 Phase Coating create crystal-clear images with high resolution by correcting phase shift interference that occurs as light passes through the prism, delivering a round exit pupil and enhanced contrast. Vanguard's V-Max Silver anti-reflection coatings, applied across all air-to-glass surfaces as part of a fully multi-coated optical system, maximize light reflection efficiency for brighter, crisper images with sharper contrast — even during the critical dawn and dusk hours when game is most active and light is most challenging.
The 8×42 configuration provides one of the widest fields of view in its class at 7.0 degrees (367 ft at 1,000 yds), making it exceptionally easy to spot movement in foliage, quickly locate and follow birds in flight, and scan expansive terrain efficiently during extended glassing sessions. The generous 19mm eye relief ensures comfortable viewing for extended periods, even for eyeglass wearers, while multi-stage twist-out eyecups allow you to customize the eye-to-lens distance precisely. A large, ridged center focus wheel provides smooth, precise adjustments, and the lockable diopter ensures your individual eye correction stays set once calibrated — no accidental bumps in the field.
Built for real-world durability, the Endeavor ED features a lightweight magnesium alloy body wrapped in protective rubber armor that absorbs impacts and provides a secure, non-slip grip even in wet or cold conditions. The ergonomic open-bridge design reduces weight while providing a natural, comfortable hand position that lets you wrap your fingers fully around the binocular — allowing you to hold them steadier for longer periods with less fatigue. Nitrogen-charged and O-ring sealed, the Endeavor ED is 100% waterproof and 100% fogproof, performing reliably through rain, snow, and rapid temperature changes. A close focus distance of just 6.6 feet allows detailed observation of butterflies, flowers, and other subjects at near range. Backed by Vanguard's no-fault, no-hassle Lifetime Warranty.
Product Features:
- Extra-Low Dispersion (ED) Glass – Virtually eliminates chromatic aberration for sharper images with truer colors and higher resolution than standard glass
- Phase-Coated BaK4 Roof Prisms (P2 Coating) – Corrects phase shift interference for crystal-clear images with enhanced contrast and a round exit pupil
- Fully Multi-Coated Optics with V-Max Silver Coatings – 92% light transmission for bright, high-contrast images even in challenging low-light conditions
- Wide 7.0° Field of View (367 ft @ 1,000 yds) – One of the widest in its class for efficient scanning and easy subject tracking
- 19mm Eye Relief with Twist-Out Eyecups – Comfortable extended viewing for eyeglass wearers; multi-stage adjustment for custom fit
- 6.6 ft (1.8m) Close Focus Distance – Detailed observation of butterflies, flowers, insects, and other near subjects
- Ergonomic Open-Bridge Design – Lightweight structure with natural hand position for steadier, fatigue-free holding
- Magnesium Alloy Body with Rubber Armor – Durable, lightweight construction with impact protection and non-slip grip
- 100% Waterproof & Fogproof – Nitrogen-filled, O-ring sealed for reliable performance in rain, snow, and temperature extremes
- Lockable Diopter – Prevents accidental changes to your individual eye correction once set
- Smooth Center Focus Wheel – Large, ridged knob for precise, fast adjustments with gloves or bare hands
- No-Fault, No-Hassle Lifetime Warranty – Vanguard's comprehensive warranty for long-term confidence
Product Specifications:
| Specification |
Detail |
| Brand |
Vanguard |
| Model |
Endeavor ED 8420 |
| Prism Type |
Roof (BaK4) |
| Prism Coating |
P2 Phase Coating |
| Magnification |
8× |
| Objective Lens Diameter |
42mm |
| Glass Type |
Extra-Low Dispersion (ED) |
| Lens Coating |
Fully Multi-Coated (V-Max Silver + Anti-Reflection) |
| Light Transmission |
92% |
| Exit Pupil |
5.2mm |
| Eye Relief |
19mm |
| Angle of View |
7.0° (56° apparent) |
| Field of View at 1,000 yds |
367 ft |
| Close Focus Distance |
6.6 ft (1.8m) |
| Diopter Adjustment |
Lockable |
| Eyecups |
Multi-stage twist-out |
| Focus System |
Center focus wheel |
| Waterproof |
Yes (O-ring sealed) |
| Fogproof |
Yes (nitrogen filled) |
| Body Material |
Magnesium alloy with rubber armor |
| Body Design |
Open-bridge ergonomic |
| Dimensions |
6.1″ × 5.1″ × 2.1″ (154 × 130 × 53mm) |
| Weight |
25.8 oz (730g) |
| Tripod Adaptable |
Yes (via adapter) |
| Warranty |
No-Fault, No-Hassle Lifetime Warranty (Vanguard) |
| Use Case |
Birding, hunting, wildlife observation, nature, hiking, outdoor recreation |