levenhuk 10×42 Camo Binoculars With Reticle User Manual

: June 14, 2024
: levenhuk

Table of Contents

levenhuk 10×42 Camo Binoculars With Reticle
Product Information
Features
Care and Maintenance
Battery Safety Instructions
Product Usage Instructions
Calculating the Target’s Size Using Angle Readings
Using the Additional Reticle to Calculate Distance Directly
Specifications
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

levenhuk 10×42 Camo Binoculars With Reticle

Product Information

The Levenhuk Camo 10×42 Binoculars with Reticle are a versatile and high- quality binoculars designed for various outdoor activities. The binoculars come with a reticle that can be used to calculate distance and size of the target. The kit includes binoculars, dust caps for eyepieces and objective lenses, strap, pouch, cleaning wipe, user manual, and warranty.

Features

Magnification: 10x
Objective lens diameter: 42mm
Field of view: 15mm
Exit pupil diameter: 4mm
Eye relief: 14mm
Relative brightness: The manufacturer did not provide this information.
Twilight factor: The manufacturer did not provide this information.
Interpupillary distance: The manufacturer did not provide this information.
Close focus: The manufacturer did not provide this information.
Diopter adjustment: The manufacturer did not provide this information.
Tripod adapter thread: The manufacturer did not provide this information.
Operating temperature range: The manufacturer did not provide this information.
High-quality roof prisms made of fully multi-coated BK-7 optical glass;
Waterproof shells (IP67), rubberized for the perfect grip;
Central focusing and diopter adjustment mechanisms;
Rangefinder scale for convenient measuring of the observed object’s size or distance to the object;
Adaptable to a tripod (purchased separately).

The kit includes: binoculars, dust caps for eyepieces and objective lenses, strap, pouch, cleaning wipe, user manual, and warranty.

Reticle
This device is equipped with a rangefinder scale. It consists of vertical and horizontal lines with divisions on the lens and enables the measurement of the height, distance, and size of a target as well as the angle between two close targets (or between the two ends of one target). A division value on both vertical and horizontal lines equals 5mils (360º equals 6400mils) and, therefore, the distance between two big nicks on a scale equals 10mils. The reticle also has an additional scale on the bottom half of the lens that enables the quick measurement of the distance to a target 2m high.

The reticle appearance in your model may differ from the one in this user guide.

Using the reticle to calculate distance
When you know the target’s size in meters, calculate the distance to the target in kilometers using this formula:

where S is the distance to the target in km, H is the estimated height of the target in m, and w is the vertical angle of the target in mil. For example, the estimated height of the lighthouse

is 30m, and its vertical angle is 75mils.

The distance to the target is calculated as follows:

Therefore, the distance to the target is 0.4km.

Care and Maintenance

To ensure the longevity and optimal performance of your Levenhuk Camo 10×42 Binoculars, follow these care and maintenance instructions:

Handle the binoculars with care and avoid dropping them or subjecting them to impact.
Wipe the lenses and body of the binoculars with a soft, lint-free cloth to remove dust and dirt.
Store the binoculars in a dry and clean place when not in use.
Do not disassemble or attempt to repair the binoculars yourself. If you encounter any issues, contact the manufacturer for assistance.

Take the necessary precautions when using the device with children or others who have not read or who do not fully understand these instructions. Do not try to disassemble the device on your own for any reason. For repairs and cleaning of any kind, please contact your local specialized service center. Protect the device from sudden impact and excessive mechanical force. Do not touch the optical surfaces with your fingers. Clean the lens surface with compressed air or a soft lens cleaning wipe. To clean the device exterior, use only the special cleaning wipes and special tools that are recommended for cleaning the optics.

Battery Safety Instructions

If your Levenhuk Camo 10×42 Binoculars require batteries, follow these safety instructions:

Only use the specified type and size of batteries recommended by the manufacturer.
Ensure the batteries are inserted correctly with the correct polarity.
Do not mix old and new batteries or different types of batteries.
Remove the batteries from the binoculars when not in use for an extended period.
Keep batteries away from children and dispose of them properly according to local regulations.

Always purchase the correct size and grade of battery most suitable for the intended use. Always replace the whole set of batteries at one time; taking care not to mix old and new ones, or batteries of different types. Clean the battery contacts and also those of the device prior to battery installation. Make sure the batteries are installed correctly with regard to polarity (+ and –). Remove batteries from equipment that is not to be used for an extended period of time. Remove used batteries promptly. Never short-circuit batteries as this may lead to high temperatures, leakage, or explosion. Never heat batteries in order to revive them. Do not disassemble batteries. Remember to switch off devices after use. Keep batteries out of the reach of children, to avoid risk of ingestion, suffocation, or poisoning. Utilize used batteries as prescribed by your country’s laws.

Levenhuk Warranty:
The Levenhuk Camo 10×42 Binoculars come with a warranty provided by the manufacturer. For detailed warranty information, refer to the user manual or contact the manufacturer directly. All Levenhuk telescopes, microscopes, binoculars, and other optical products, except for their accessories, carry a lifetime warranty against defects in materials and workmanship. A lifetime warranty is a guarantee on the lifetime of the product on the market. All Levenhuk accessories are warranted to be free of defects in materials and workmanship for six months from the purchase date. The warranty entitles you to the free repair or replacement of the Levenhuk product in any country where a Levenhuk office is located if all the warranty conditions are met.
For further details, please visit: www.levenhuk.com/warranty
If warranty problems arise, or if you need assistance in using your product, contact the local Levenhuk branch.

Product Usage Instructions

To use the Levenhuk Camo 10×42 Binoculars with Reticle, follow these instructions:
Using the Reticle to Calculate Distance:

When you know the target’s size in meters, calculate the distance to the target in kilometers using the formula provided in the user manual.
For example, if the estimated height of the lighthouse is 30m and its vertical angle is 75mils, you can calculate the distance to the target.
Refer to the user manual for the detailed calculation formula and example.

Calculating the Target’s Size Using Angle Readings

When you know the distance to the target in kilometers, you can calculate its height and width in meters using the formula provided in the user manual.
For example, if the estimated distance to the tank is 0.25km, the vertical angle is approximately 10mils, and the horizontal angle is 20mils, you can calculate the size of the tank.
Refer to the user manual for the detailed calculation formula and example.

When you know the distance to the target in kilometers, you can calculate its height and width in meters using the distance measurement formula:

H=Sxw,
where H is the estimated height or width of the target in m, S is the distance to the target in km, and w is the vertical or horizontal angle of the target in mil.
For example, the estimated distance to the tank shown in

is 0.25km, the vertical angle is approximately 10mils, and the horizontal angle is 20mils. Calculate the size using the formula:
0.25 x 10 = 2.5
0.25 x 20 = 5
Therefore, the tank’s height is 2.5m, and the tank’s width is 5m.

Using the Additional Reticle to Calculate Distance Directly

If the target’s height is known to be 2m, you can calculate the distance to it using the additional reticle on the bottom half of the lens without using a formula.
To do so, place the target on the horizontal line of the reticle. The point where the target touches the scale is the distance in meters.
For example, if the distance to the tank is 550m, you can use the additional reticle to calculate it directly.

If the target’s height is known to be 2m, you can calculate the distance to it using the additional reticle on the bottom half of the lens without using a formula. To do so, place the target on the horizontal line of the reticle. The point where the target touches the scale is the distance in meters. For example, the distance to the tank shown in fig. 3 is 550m.

Please refer to the user manual for more detailed instructions and examples on using the reticle and calculating distance and size with the Levenhuk Camo 10×42 Binoculars.

www.levenhuk.com
Levenhuk Inc. (USA): 928 E 124th Ave. Ste D, Tampa, FL 33612, USA, +1-813-468-3001, contact_us@levenhuk.com
Levenhuk Optics s.r.o. (Europe): V Chotejně 700/7, 102 00 Prague 102, Czech Republic, +420 737-004-919, sales-info@levenhuk.cz Levenhuk® is a registered trademark of Levenhuk, Inc.
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