Introduction
This manual provides comprehensive instructions for the proper use and care of your Gosky Titan 12X50 Monocular Telescope. Designed for outdoor enthusiasts, this monocular offers 12x magnification and a 50mm objective lens, making it ideal for bird watching, hunting, camping, traveling, and wildlife observation. It features a BAK-4 prism, fully multi-coated (FMC) optics, and a robust waterproof, fog-proof, shockproof, and dustproof design.
What's Included
Your Gosky Titan 12X50 Monocular Telescope package includes the following items:
- Gosky Titan 12X50 Monocular Telescope
- Universal Smartphone Adapter
- Hand Strap
- Lens Cleaning Cloth
- Eyepiece Protection Cover
- Objective Lens Protection Cover
- User Manual
- Carrying Bag

Figure 1: All items included in the Gosky Titan 12X50 Monocular Telescope package.
Product Features and Components
Familiarize yourself with the key components of your monocular for optimal performance:
- Magnification: 12x power to bring distant objects closer.
- Objective Lens: 50mm diameter for excellent light gathering.
- Eyepiece: 18mm for comfortable viewing.
- Prism Type: BAK-4 for bright, clear, and sharp images.
- Lens Coating: Fully Multi-Coated (FMC) for increased light transmission and resolution.
- Field of View: 289ft/1000yards (6.5 degrees).
- Waterproof Rating: Living waterproof (resistant to moderate rain and snow).
- Eyecup: Twist-up design for comfortable use with or without eyeglasses.
- Focus Wheel: For precise focusing.
- Tripod Connector: Standard thread for tripod mounting.
- Hand Strap Loop: For attaching the included hand strap.

Figure 2: Key components of the Gosky Titan 12X50 Monocular.

Figure 3: Illustration of BAK-4 Prism clarity.
Setup
1. Adjusting the Eyecup
The monocular features a twist-up eyecup to accommodate users with and without eyeglasses. Rotate the eyecup to extend or retract it until you achieve a full, clear field of view. This adjustment ensures optimal eye relief, the distance between your eye and the eyepiece lens.

Figure 4: Adjusting the twist-up eyecup.
2. Focusing the Monocular
To focus, look through the eyepiece and rotate the focus wheel located on top of the monocular. Turn the wheel clockwise to focus on closer objects and counter-clockwise for more distant objects until the image is sharp and clear.
3. Attaching the Smartphone Adapter
The universal smartphone adapter allows you to capture photos and videos through your monocular. Follow these steps:
- Assemble the smartphone adapter by connecting the phone clamp to the eyepiece holder using the provided screw. Ensure the screw is tightened securely.
- Place your smartphone into the clamp, ensuring it is held firmly.
- Align your phone's camera lens with the center of the adapter's eyepiece opening. Adjust the phone's position horizontally and vertically as needed.
- Insert the adapter onto the monocular's eyepiece. Tighten the adapter's screw to secure it to the monocular.
- Open your phone's camera app. You may need to use the digital zoom feature on your phone to eliminate any vignetting (dark edges) and achieve a full-screen view through the monocular.

Figure 5: Monocular with universal smartphone adapter attached.
Video: Attaching the Smartphone Adapter
Video 1: This video demonstrates the process of attaching the smartphone adapter to the Gosky Titan Monocular and aligning the phone's camera for optimal viewing and photography.
4. Tripod Mounting
For extended viewing sessions or to reduce shake during photography/videography, you can mount the monocular on a tripod. The monocular has a standard tripod thread at its base. Remove the small screw with a loop from the base to reveal the tripod mount. Attach the monocular to any standard tripod.
Operating Instructions
Once set up, your Gosky Titan monocular is ready for use. Hold the monocular firmly and bring it to your eye. Adjust the eyecup and focus wheel as described in the Setup section to achieve a clear and comfortable view. For best results, ensure stable positioning, especially at higher magnifications.

Figure 6: The monocular is suitable for various outdoor activities.
Maintenance and Care
- Cleaning Lenses: Use the provided lens cleaning cloth or a soft, lint-free cloth to gently wipe the lenses. For stubborn smudges, use a small amount of lens cleaning fluid designed for optics. Avoid abrasive materials or excessive force.
- Body Cleaning: Wipe the monocular body with a soft, damp cloth.
- Storage: Store the monocular in its carrying bag in a cool, dry place when not in use. Ensure lens caps are in place to protect the optics from dust and scratches.
- Waterproof Care: While the monocular is "living waterproof" (resistant to moderate rain and snow), it is not designed for submersion. Avoid dropping it into water.
Troubleshooting
- Image not centered when using smartphone adapter: Adjust the position of your smartphone within the adapter clamp to ensure the camera lens is perfectly aligned with the monocular's eyepiece.
- Small image or blurry edges on smartphone screen: Use your smartphone's digital zoom feature to enlarge the image and remove any vignetting.
- Eyepiece cap is loose: The eyepiece cap is designed to be removable. If it falls off easily, consider attaching a small string or lanyard through its loop to secure it to the monocular.
- Shaky images/videos: For stable viewing and recording, especially at high magnifications, it is highly recommended to use a tripod.
Specifications
| Feature | Detail |
|---|---|
| Brand | Gosky |
| Model Name | TITAN |
| Magnification | 12X |
| Objective Lens Diameter | 50 Millimeters |
| Eye Piece Lens Description | Prism |
| Eye Lens | 20mm |
| Focus System | Center (Manual Focus) |
| Field Of View | 6.5 Degrees (289ft/1000yards) |
| Exit Pupil Diameter | 4.2 Millimeters |
| Exit Relief | 17mm |
| Coating | Fully Multi-Coated (FMC) |
| Waterproof Rate | Living waterproof (resistant to moderate rain/snow) |
| Eyecup | Twist-up |
| Item Weight | 13.85 Ounces |
| Product Dimensions | 7.1"D x 3.4"W x 2.8"H |
| Compatible Devices | Smartphone |
| Manufacturer Part Number | QHMN02 |
| UPC | 607994607439 |
Warranty and Support
The Gosky Titan 12X50 Monocular Telescope comes with a 12-month warranty from the date of purchase. For warranty claims, technical support, or any inquiries, please contact Gosky customer service through their official website or the retailer where the product was purchased.