Introduction
Thank you for choosing the Levenhuk Sherman Base 10x42 Binoculars. This manual provides essential information for the proper use, care, and maintenance of your new optical instrument. Please read it thoroughly before first use to ensure optimal performance and longevity of your binoculars.
The Levenhuk Sherman Base 10x42 binoculars are designed for reliable performance in various conditions, featuring waterproof and fog-proof construction, and high-quality BaK-4 glass optics for clear and sharp images.
Product Overview
The Levenhuk Sherman Base 10x42 binoculars are equipped with Porro prisms and fully multi-coated BaK-4 glass optics, ensuring bright, high-contrast images. The robust, nitrogen-filled housing provides waterproof and fog-proof protection.
This image displays the Levenhuk Sherman Base 10x42 binoculars from an angled perspective, showcasing their compact and robust design. The main body is black, with the Levenhuk logo visible on the left barrel.
This image shows the Levenhuk Sherman Base 10x42 binoculars alongside their standard accessories: a carrying case, a neck strap, a cleaning cloth, and protective caps for both objective and eyepiece lenses. The product packaging is also visible in the background.
Key Components:
- Objective Lenses: The large front lenses that gather light. (42mm diameter)
- Eyepieces: The lenses you look through.
- Center Focus Wheel: Used for focusing both barrels simultaneously.
- Diopter Adjustment Ring: Located on the right eyepiece, used for fine-tuning focus for individual eye differences.
- Interpupillary Distance Adjustment: The hinge mechanism that allows you to adjust the distance between the two barrels to match your eye spacing.
- Tripod Adapter Socket: Located under a cap on the front hinge, allows mounting to a tripod.
Setup
- Unpacking: Carefully remove the binoculars and all accessories from the packaging. Ensure all components listed in the "Product Overview" section are present.
- Attaching the Neck Strap: Thread the neck strap through the strap lugs on the sides of the binocular body. Securely fasten the strap to prevent accidental drops.
- Adjusting Interpupillary Distance: Hold the binoculars with both hands and look through the eyepieces. Bend the body of the binoculars at the hinge until you see a single, clear circular field of view. This adjusts the distance between the eyepieces to match the distance between your pupils.
Figure 3: Adjusting the interpupillary distance. This image shows the front view of the binoculars, illustrating how the two barrels can be pivoted around the central hinge to adjust the interpupillary distance, ensuring a comfortable and clear viewing experience for different users.
- Adjusting Eyecups: If you wear eyeglasses, twist down or fold down the rubber eyecups to bring your eyes closer to the eyepiece lenses, allowing for a full field of view. If you do not wear eyeglasses, leave the eyecups in the up position.
Operating Instructions
- Initial Focusing:
- Close your right eye or cover the right objective lens.
- Look through the left eyepiece with your left eye at a distant object.
- Rotate the center focus wheel until the image in the left eyepiece is sharp and clear.
- Diopter Adjustment:
- Now, close your left eye or cover the left objective lens.
- Look through the right eyepiece with your right eye at the same distant object.
- Rotate the diopter adjustment ring on the right eyepiece until the image is sharp and clear. Do not use the center focus wheel for this step.
Figure 4: Diopter adjustment ring. This close-up image highlights the diopter adjustment ring located on the right eyepiece of the binoculars. The markings for '+' and '-' indicate the direction for adjusting focus to compensate for differences in vision between the user's eyes.
- General Focusing: Once the diopter is set, you can use the center focus wheel to focus on objects at varying distances. Both eyes should now be in focus simultaneously.
- Tripod Mounting (Optional): For extended viewing or to reduce hand shake, the binoculars can be mounted on a tripod using a standard tripod adapter (not included). Unscrew the cap on the front hinge to reveal the tripod adapter socket.
Maintenance and Care
- Cleaning Lenses: Use the included cleaning cloth or a soft, lint-free cloth specifically designed for optics. Gently wipe the lens surfaces. For stubborn smudges, use a small amount of optical cleaning fluid applied to the cloth, not directly to the lens. Avoid touching the lens surfaces with your fingers.
- Cleaning Body: Wipe the body of the binoculars with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Storage: When not in use, store the binoculars in their protective case in a cool, dry place, away from direct sunlight and extreme temperatures. Ensure lens caps are in place to protect the optics from dust and scratches.
- Waterproof Feature: While the binoculars are waterproof and nitrogen-filled to prevent internal fogging, avoid prolonged submersion. If exposed to water, wipe them dry with a soft cloth.
Figure 5: Durable housing material. This image shows a close-up of the textured black material used for the binocular housing, indicating its robust and non-slip design for secure handling.
Figure 6: Waterproof protection. This image depicts water droplets on a blue surface, visually representing the waterproof capabilities of the binoculars, which are designed to withstand various weather conditions.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Blurred image | Incorrect focus or diopter setting. | Adjust the center focus wheel and diopter adjustment ring as described in the "Operating Instructions" section. |
| Double image or two overlapping circles | Incorrect interpupillary distance. | Adjust the hinge until a single, clear circular field of view is achieved. |
| Fogging of internal lenses | Extreme temperature changes or seal compromise. | The binoculars are nitrogen-filled to prevent internal fogging. If persistent internal fogging occurs, contact customer support. External fogging can be wiped away. |
| Dust or spots on image | Dust on objective or eyepiece lenses. | Clean the lenses using the provided cleaning cloth or a suitable optical cleaning kit. |
Specifications
| Feature | Detail |
|---|---|
| Model | Sherman Base 10x42 |
| Part Number | 71143 |
| Magnification | 10x |
| Objective Lens Diameter | 42 mm |
| Prism Type | Porro |
| Optics Coating | Fully Multi-Coated |
| Prism Material | BaK-4 Glass |
| Water Resistance | Waterproof |
| Fog Proof | Nitrogen-filled |
| Focus Type | Center Focus |
| Body Material | Aluminum |
| Item Dimensions (L x W x H) | 17.5 x 13.5 x 5.2 cm |
| Item Weight | 2.6 Pounds (approx. 1.18 kg) |
| Tripod Adaptable | Yes |
Warranty and Support
Levenhuk Sherman Base 10x42 Binoculars come with a lifetime warranty against defects in materials and workmanship. This warranty covers the original purchaser and is non-transferable. For detailed warranty terms and conditions, please refer to the official Levenhuk website or contact their customer support.
For technical support, warranty claims, or any inquiries regarding your Levenhuk product, please visit the official Levenhuk website or contact their customer service department. Contact information can typically be found on the product packaging or the brand's official website.
Manufacturer: Levenhuk
Website: www.levenhuk.com
