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URL: http://www.thaiexcite.com/Levenhuk-Nelson-7x50-Waterproof-Marine-Binoculars-with-compass-and-rangefinder-72109-LE721091.html
Levenhuk Nelson 7x35 Marine Monocular will be a great assistant to fishermen and water trip lovers. This lightweight and compact tool will easily fit anywhere, even in a pocket. 7x magnification is sufficient for detailed observation of remote objects. A small-sized optical tool ensures a wide field of view of 130 m at 1000 m distance. A minimum focus distance of 3 m allows for exploring a close coastline.
This marine monocular is equipped with a compass and rangefinder. We recommend using the compass during the daytime, since it has no illumination. You can see the instrument dials in the eyepiece. In order to use the rangefinder, you need to know the size (height) of an object to calculate how far away it is. The distance is calculated with a special formula based on the rangefinder indication. Or you can calculate the size of an object if you know the distance to it.
The arc dial in the compass is graduated in degrees. Division value is 1°. The compass indicates the direction towards the object. North is 360°, South is 180°, East is 90° and West is 270°.
All optical elements are made of quality BaK-4 glass. The lenses are fully multi-coated, so the image will remain bright and clear even in dim illumination.
You can customize the diopter adjustment by twisting the eyepiece. The waterproof shell is made of durable plastic. Nitrogen filling prevents the inner surface of the lenses from fogging.
We recommend using this monocular with the Levenhuk FS10 Floating Strap near water: the bright accessory will prevent the optical tool from sinking or getting lost.
Features:
The kit includes:
Optics material | BaK-4 glass |
Optics coating | fully multi-coated |
Eyepieces | 2 optical elements in 1 group |
Objectives | 3 optical elements in 2 groups |
Magnification, x | 7 |
Objective lens diameter (aperture), mm | 35 |
Field of view, ° | 7.5 |
Relative brightness | 25 |
Twilight factor | 15.65 |
Exit pupil diameter, mm | 5 |
Eye relief, mm | 23 |
Close focus, m | 3 |
Eyepiece diopter adjustment, diopters | ±4 |
Waterproof | yes (class IPX7) |
Body | plastic |
Additionally | built-in compass and rangefinder |
Usage | General use product. May be used by kids over 3 years old |
Field of view, m/1000 m | 130 |
Operating temperature range, °C | −20…+55 |
Shipping weight | 0.9 lb (0.415 kg) |
Package size (LxWxH) | 7.1×3.5×2.8 in (18×9×7 cm) |
User manual: Levenhuk Nelson Monoculars (pdf) 193KB
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Levenhuk is a major American manufacturer of optical devices and instruments such as microscopes, telescopes, binoculars, monoculars, spotting scopes and accessories. Particular attention is given to producing optics for children under the Levenhuk LabZZ trademark, including attractive and user-friendly telescopes, microscopes, binoculars and science kits. The company is headquartered in the United States (Tampa) with thirteen sales and delivery branches in the United States, Canada, Europe and Asia, and manufacturing facilities in China.
Right from the start in 2002 Levenhuk focused its efforts on underserved markets outside of the US, in particular in Canada and Central and Eastern Europe, which presented larger opportunities. Levenhuk’s primary objective was to promote high-quality optics in these regions because of their insufficient supply and cost-sensitivity for most of the products available in the market at that time. Levenhuk took the opportunity to enter the market niche with a totally new product portfolio, having set the goal of making optics affordable for every customer. The success built on this step made it possible for the company to become a respected leader in the optics market, with the largest market share in CEE.
Currently Levenhuk has a direct presence and extensive dealer network in the United States, Canada, India, Southeast Asia and Europe. The company's future growth and expansion plans include opening regional branches and developing a distribution network in Southern America and further expanding in Europe.