Vanguard Endeavor ED 8420 8x42 ED Glass Binoculars – Fully Multi-Coated Optics, Phase-Coated BaK4 Prism, Waterproof/Fogproof, Lifetime Warranty
Vanguard Endeavor ED 8420 8x42 ED Glass Binoculars – Fully Multi-Coated Optics, Phase-Coated BaK4 Prism, Waterproof/Fogproof, Lifetime Warranty
Item: ENDEAVOR ED 8420
Delivery: FREE
Overview
A versatile 8x42 binocular delivering sharp ED optics, rugged durability, and backed by a Lifetime Warranty.
Key Features & Benefits
- 8x42 configuration provides a wide, stable field of view for versatile observation
- ED glass + phase-coated BaK4 prisms deliver sharp detail, accurate color, and enhanced contrast
- Fully multi-coated optics maximize brightness and clarity in all lighting conditions
- Waterproof and fogproof binoculars for reliable performance in all weather
- Durable, rubber-armored construction for protection and a secure grip
- Center focus system for smooth, precise adjustments
- Multi-stage twist-out eyecups for customizable viewing comfort
- Wide field of view (~366 ft @ 1000 yds) for efficient scanning
- Ideal for hunting, birdwatching, and outdoor observation
- No-fault, no-hassle Lifetime Warranty for long-term confidence

The Endeavor ED 8420 8x42 Binoculars are designed to deliver exceptional clarity, durability, and all-around field performance, making them a trusted choice for hunters, birders, and outdoor enthusiasts who demand reliable optics in any environment.
At the core is a high-performance optical system featuring extra-low dispersion (ED) glass and phase-coated BaK4 roof prisms, engineered to reduce chromatic aberration and deliver sharp detail, accurate color reproduction, and strong contrast. Paired with fully multi-coated optics, this system enhances light transmission to produce bright, clear images even in challenging lighting conditions.
The 8x42 configuration offers a wide, stable field of view, ideal for scanning terrain, tracking movement, and extended glassing sessions. Its balanced magnification and light-gathering capability make it a versatile option for a wide range of outdoor applications.
Built for demanding environments, the binocular features a lightweight yet durable construction with protective rubber armor, ensuring a secure grip and long-term reliability in the field. Its waterproof and fogproof design allows it to perform consistently in changing weather conditions.
User-focused design elements enhance comfort and usability. A center focus system enables smooth, precise adjustments, while multi-stage twist-out eyecups provide a customizable viewing experience for extended use.
Backed by Vanguard’s no-fault, no-hassle Lifetime Warranty, the Endeavor ED 8420 is built not only for strong optical performance—but for long-term confidence in the field.
Another Fine Day Afield.
| Color | Black/Green | Black/Green |
|---|---|---|
| Diameter of objectives | 42mm | 42mm |
| Dimensions (L x W) | 6.1 x 5.1 inches | 6.1 x 5.1 inches |
| Eye Cup | 3 stops Twist-out eyecups | 3 stops Twist-out eyecups |
| Eye Relief | 19 mm | 19 mm |
| Field of View | 367 ft./1000 yds. | 367 ft./1000 yds. |
| Focus System | Center focus | Center focus |
| Lens coating | Fully multi-coated | Fully multi-coated |
| Magnification | 8x | 8x |
| Near focus | 6.6 ft. | 6.6 ft. |
| Prism Type | BaK4 Roof prism | BaK4 Roof prism |
| Series | Endeavor ED | Endeavor ED |
| View Angle | 7.0 degrees | 7.0 degrees |
| Warranty | Premium Lifetime | Premium Lifetime |
| Waterproof/Fogproof | Yes | Yes |
| Weight | 25.75 oz. | 25.75 oz. |

The Endeavor ED 8420 8x42 Binoculars are designed to deliver exceptional clarity, durability, and all-around field performance, making them a trusted choice for hunters, birders, and outdoor enthusiasts who demand reliable optics in any environment.
At the core is a high-performance optical system featuring extra-low dispersion (ED) glass and phase-coated BaK4 roof prisms, engineered to reduce chromatic aberration and deliver sharp detail, accurate color reproduction, and strong contrast. Paired with fully multi-coated optics, this system enhances light transmission to produce bright, clear images even in challenging lighting conditions.
The 8x42 configuration offers a wide, stable field of view, ideal for scanning terrain, tracking movement, and extended glassing sessions. Its balanced magnification and light-gathering capability make it a versatile option for a wide range of outdoor applications.
Built for demanding environments, the binocular features a lightweight yet durable construction with protective rubber armor, ensuring a secure grip and long-term reliability in the field. Its waterproof and fogproof design allows it to perform consistently in changing weather conditions.
User-focused design elements enhance comfort and usability. A center focus system enables smooth, precise adjustments, while multi-stage twist-out eyecups provide a customizable viewing experience for extended use.
Backed by Vanguard’s no-fault, no-hassle Lifetime Warranty, the Endeavor ED 8420 is built not only for strong optical performance—but for long-term confidence in the field.
Another Fine Day Afield.
| Color | Black/Green | Black/Green |
|---|---|---|
| Diameter of objectives | 42mm | 42mm |
| Dimensions (L x W) | 6.1 x 5.1 inches | 6.1 x 5.1 inches |
| Eye Cup | 3 stops Twist-out eyecups | 3 stops Twist-out eyecups |
| Eye Relief | 19 mm | 19 mm |
| Field of View | 367 ft./1000 yds. | 367 ft./1000 yds. |
| Focus System | Center focus | Center focus |
| Lens coating | Fully multi-coated | Fully multi-coated |
| Magnification | 8x | 8x |
| Near focus | 6.6 ft. | 6.6 ft. |
| Prism Type | BaK4 Roof prism | BaK4 Roof prism |
| Series | Endeavor ED | Endeavor ED |
| View Angle | 7.0 degrees | 7.0 degrees |
| Warranty | Premium Lifetime | Premium Lifetime |
| Waterproof/Fogproof | Yes | Yes |
| Weight | 25.75 oz. | 25.75 oz. |