Introduction
Thank you for choosing the Nikon PROSTAFF P3 8x42 Binocular. This manual provides essential information for the proper setup, operation, and maintenance of your new binoculars. Please read it thoroughly to ensure optimal performance and longevity of your device.

Front view of the Nikon PROSTAFF P3 8x42 Binocular.
Package Contents
Verify that all the following items are included in your package:
- Nikon PROSTAFF P3 8x42 Binocular (Black)
- Nikon Binoculars Case
- Nikon Neoprene Binocular Neck Strap
- Nikon Eyepiece Cap
- Nikon Objective Cap
Product Overview
The Nikon PROSTAFF P3 8x42 Binocular is designed for clear and comfortable viewing in various outdoor conditions. Key features include:
- 8x Magnification: Provides a clear, magnified view of distant objects.
- 42mm Objective Lenses: Large lenses gather ample light for bright, clear images, even in low-light conditions.
- Multilayer-Coated Lenses: Reduces glare and enhances contrast for vivid, true-to-life colors.
- Waterproof and Fogproof: O-ring sealed and nitrogen-purged to prevent internal fogging and water intrusion.
- Rubber Armor: Durable, slip-resistant rubber coating provides protection against impacts and ensures a secure grip.
- Adjustable Turn-and-Slide Eyecups: Offers comfortable viewing with or without eyeglasses, with long eye relief.
- Central Focus Wheel: Allows for quick and precise focusing.

Angled view of the Nikon PROSTAFF P3 8x42 Binocular, highlighting its robust design.

Rear view of the Nikon PROSTAFF P3 8x42 Binocular, showing the eyepieces.
Setup
1. Attaching the Neck Strap
- Thread the ends of the neck strap through the strap lugs on each side of the binocular body.
- Adjust the strap length to a comfortable position for carrying.
2. Adjusting Eyecups (Eye Relief)
The PROSTAFF P3 features turn-and-slide eyecups to provide optimal eye relief for all users, including those who wear eyeglasses.
- For Eyeglass Wearers: Use the binoculars with the eyecups fully retracted (turned clockwise).
- For Non-Eyeglass Wearers: Extend the eyecups by turning them counter-clockwise until you achieve a full, clear field of view without vignetting (darkening around the edges).

Adjustable eyecups ensure comfortable viewing for all users.
3. Adjusting Interpupillary Distance
Adjust the distance between the two barrels of the binoculars until you see a single, circular field of view. This ensures both eyes are aligned with the optical axis.
4. Focusing
- Central Focus Wheel: Look through the binoculars at a distant object. Rotate the large central focus wheel until the image in the left eyepiece is sharp.
- Diopter Adjustment: While keeping your left eye closed, look through the right eyepiece and rotate the diopter adjustment ring (usually on the right eyepiece) until the image is sharp.
- Once both adjustments are made, you can use the central focus wheel for quick focusing on objects at varying distances.
Operating
Your Nikon PROSTAFF P3 binoculars are ready for use after initial setup. Here are some tips for optimal operation:
- Steady Viewing: For extended viewing or to minimize shake, consider mounting the binoculars on a tripod using an optional tripod adapter.
- Low-Light Performance: The 42mm objective lenses and multilayer coatings provide excellent light gathering capabilities, making these binoculars suitable for dawn and dusk observations.
- Weather Resistance: The waterproof and fogproof design allows for reliable use in various weather conditions. However, they are not intended for underwater use.

High definition optics provide spectacular views of wildlife.

The binoculars are designed to be tough, waterproof, and fogproof.
Maintenance
Proper care and maintenance will extend the life of your binoculars and ensure continued high performance.
- Cleaning Lenses:
- Remove dust with a soft brush or a can of compressed air.
- Apply a small amount of lens cleaning fluid to a clean microfiber cloth.
- Gently wipe the lens surface in a circular motion. Avoid excessive pressure.
- Do not use abrasive materials or harsh chemicals, as they can damage lens coatings.
- Cleaning Body: Wipe the rubber-armored body with a soft, damp cloth.
- Storage: Store your binoculars in their case in a cool, dry place when not in use. Avoid extreme temperatures and high humidity.
- Protection: Always use the objective and eyepiece caps when storing or transporting the binoculars to protect the lenses from scratches and dust.
Troubleshooting
If you encounter any issues with your binoculars, refer to the following common troubleshooting tips:
| Problem | Possible Cause | Solution |
|---|---|---|
| Blurred image | Incorrect focus or diopter setting. | Adjust the central focus wheel and diopter ring until the image is sharp. Ensure interpupillary distance is correctly set. |
| Dark edges in view (vignetting) | Eyecups not set correctly for your eyes/glasses. | Adjust the turn-and-slide eyecups. Retract for eyeglasses, extend for non-eyeglasses, until a full field of view is achieved. |
| Fogging inside lenses | Extreme temperature changes or internal moisture. | The binoculars are fogproof. If fogging occurs, contact Nikon support. Ensure caps are on when not in use to prevent moisture ingress. |
Specifications
| Feature | Detail |
|---|---|
| Brand | Nikon |
| Model Name | Prostaff P3 |
| Model Number | 16776 |
| Magnification Maximum | 8x |
| Objective Lens Diameter | 42 Millimeters |
| Prism Type | Roof Prism |
| Eye Relief | 20.2 Millimeters |
| Exit-Pupil Diameter | 5 Millimeters |
| Relative Brightness | 28.1 |
| Field of View | 377 Feet (at 1,000 yards) |
| Apparent Angle of View | 53.4 Degrees |
| Coating | Multilayer-coated |
| Water Resistance Level | Waterproof |
| Special Feature | Lead- and Arsenic-Free Eco-Glass; Nitrogen Filled, Water and Fogproof; Large Center Focusing Knob |
| Focus Type | Center Focus (Manual) |
| Diopter Adjustment Range | +-3 to +-5 |
| Item Weight | 20.3 Ounces |
| Item Dimensions (L x W x H) | 5.9"L x 5.1"W x 2"H |
| Material | Polycarbonate (PC) with Rubber Armor |
| Color | Black |
| UPC | 018208167760 |
Warranty and Support
Your Nikon PROSTAFF P3 8x42 Binocular comes with a Limited Lifetime Warranty. For detailed warranty information, product support, or service inquiries, please visit the official Nikon USA website or contact their customer service.
Nikon USA Support: www.nikonusa.com/en/service-and-support/index.page