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Eschenbach Sektor D 10x42 Waterproof Binoculars for Bird Watching for Adults
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- BAK-4 PHASE CORRECTED PRISMS & FULL MULTI-COATING: While with other binoculars the images are dark or unclear, our binoculars provide sharper details and a brighter image with high color fidelity
- WATER PROOF & FOGPROOF: the sektor are nitrogen filled and the case is absolutely watertight, thus suitable for any kind of weather. Bring it with you when camping!
- HIGH POWER 10X42 SUPERZOOM binoculars: powerful, lightweight and foldable binoculars for birdwatching, safari, sport, hiking and every outdoor activity. Perfect for eagle watcher and mountain excursion
- EXCEPTIONALLY ROBUST thanks to the magnasium body with anti-slip rubber coating. Ideal binoculars for adults and kids
- DEVELOPED IN GERMANY: ESCHENBACH’s story started over 100 years ago with an idea: precision. This is a guiding principle that we follow as a developer of quality optical products. We follow traditional values like experience, skill and vision
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From the manufacturer
The story of Eschenbach Optik starts at the beginning of the 20th century in Nuremberg. Since 1913 our company has been dedicated to extending its expertise in the field of optics. Today, thanks to modern production processes, we are market leader in the field of optics. Eschenbach Optik is a traditional company which places the focus firmly on precision, quality, practicality and design.
Full multi-layer coating
Tips for selecting the right binoculars
sektor D 8x32 and 8x42 compact+ binoculars are suitable for all types of terrain and are practical to use. They offer the ideal combination of weight, size and vision comfort. Whether you’re on holiday or playing sport, if you prefer binoculars which are as light as possible, we recommend a pair of sektor binoculars with 8x magnification and the smallest objective lens, for example, the sektor F 8x25 compact+. If you want some great binoculars for the mountains that will get you as close as possible to the object you’re viewing, you should choose a sektor with 10x magnification. In poor light conditions (bad weather or twilight), we recommend a maximum 8x magnification and the largest possible objective diameter: such as the sektor D 8x56 B compact+.
Phase correction is featured exclusively on roof prisms. In the case of porro prisms, phase correction does not offer any advantages due to the position of the prisms. By means of complex technology, the phase shifts of the light rays are corrected in roof prisms. Phase correction improves the resolution and the contrast of the images reproduced.
Full multi-layer coating
The sektor models have full multi-layer coating. In the case of full multi-layer coating, all lenses have a full surface anti-reflection coating. This technology allows the light to pass through the binoculars even in poor light conditions. Magnesium fluoride ('magenta full coating') is used for the standard coating. In the case of high quality binoculars such as those in the sektor range, the objective lens and eyepieces are also coated, as well as all lenses (combi-coating).
Using your binoculars correctly
Set the dioptre to 0 (usually located on the right eyepiece or in rare cases on the left eyepiece or on the focus wheel). Adjust the width of the binoculars so that you can see something with both eyes. Close the right eye and adjust the sharpness for the left eye with the central focus wheel. Then close the left eye and adjust the sharpness for the right eye.
|sektor 8x32||sektor 10x32||sektor 8x42||sektor 10x42||sektor 8x56||sektor 8x25 and 10x25|
|Magnification||8||10||8||10||8||8 and 10|
|Lens Ø (mm / in)||32 / 1,26||32 / 1,26||42 / 1,65||42 / 1,65||56 / 2,20||25 / 0,98|
|Near Point (m / ft)||1 / 3,28||1 / 3,28||2 / 6,56||2 / 6,56||1,8 / 5,90||2,5 and 3 / 8,20 and 9,84|
|Field Of View ft / 3280 ft||377,30||321,52||390,42||285,43||374,02||469,16 and 374,02|
|Height x Width x Depth (in)||4,29 x 4,56 x 1,65||4,29 x 4,56 x 1,65||5,31 x 5,08 x 2,00||5,31 x 5,08 x 2,00||6,93 x 5,55 x 2,56||4,02 x 4,33 x 1,57|
|Weight Without Bag (oz)||13,72||13,89||21,16||21,80||36,61||10,44 and 10,30|
|Prisms||BaK-4, phase-corrected||BaK-4, phase-corrected||BaK-4, phase-corrected||BaK-4, phase-corrected||BaK-4, phase-corrected||BaK-4, phase-corrected|
|Coating||Full multi-coating||Full multi-coating||Full multi-coating||Full multi-coating||Full multi-coating||Full multi-coating|
The key technical terms are briefly explained here.
Porro prisms: The 'conventional' prisms. Binoculars with Porro prisms are normally wider than comparable roof prism binoculars, but not as long. Owing to their widerspaced objective lenses, conventional Porro binoculars offer slightly better stereoscopic depth perception at short distances than roof prism equivalents.
Roof prisms: These are very compact and therefore allow the binoculars to be built very slim in form. A higher level of optical precision engineering is required than for Porro binoculars of comparable quality.
BK-7 prisms: These prisms made from boron crown glass are the standard for a good quality image.
BaK-4 prisms: These carefully machined high performance prisms made from barium crown glass provide even better resolution of details and very sharp, bright images with high colour fidelity.
SK15 prisms: These prisms are made from high quality SK15 glass. They minimise unwanted internal reflections and provide razor-sharp images with optimum contrast.
Magnification: The value gives the apparent magnification that the lens produces. With an 8x magnification the object appears 8 times closer to the viewer than in reality . Here, an object appears to be only 100 m away when in fact it is at a distance of 800 m.
Lens diameter: This is an important performance figure of binoculars since its size crucially determines the lightgathering power: The bigger the lens, the more light that reaches the eye and the brighter the image. The objective lens diameter is stated in mm.
Exit pupil/Brightness index/Twilight factor: These are arithmetic values that result from the ratio of magnification and lens diameter. Important in practice: an exit pupil between 2 and 3 mm is sufficient for use in daylight. Binoculars with an exit pupil of 5-7 mm should be chosen for difficult light conditions.
Field of view: Specifies the width of terrain seen through the binoculars at a distance of 1,000 m. The greater the field of view, the easier it is to view landscapes or moving objects, such as animals or competitors at sports events. Binoculars with wide-angle optics (with the designation: Ww) have a particularly wide field of view.
Near point: This number indicates the shortest distance at which objects can be seen sharply and without distortion. This number is important when buying binoculars for use in museums or outings where viewing is at short range.
Phase correction: This particularly elaborate application of special surface coatings to the prisms of roof prism binoculars is the ultimate for outstanding image quality.
Dielectric mirror coating: A dielectric mirror coating inside the prism system allows almost 100% reflection of the incident light and prevents the coatings from ageing. This coating ensures contours always remain distinct and clearly discernible even in poor light conditions or during the twilight hours.
Internal focusing: Focusing means adjusting the sharpness of an image. Only the lenses inside the binoculars are moved during internal focusing. This closed system prevents dust, air or moisture from being drawn in.
Waterproof: This term refers to a system of water repellent features on the casing and moveable parts that makes the binoculars resistant to pressured water.
Nitrogen filled: In contrast to air, nitrogen contains no residual moisture and so prevents the internal optics from misting up if the ambient temperature fluctuates.
Coating: Eschenbach binoculars have fully multi-coated optics. This means that all glass-to-air surfaces have an extremely thin anti-reflection coating to optimise 'light movement' through the binoculars to the eyes. A magnesium fluoride coating (magenta coating) is the standard. On some binoculars this is combined with multi-coating on one side of the lens and eyepiece to improve light transmission. For the highest vision requirements though, multi-coating is applied to all lens surfaces.
To ensure true-to-life, completely colour accurate images, Eschenbach applies a 'naturebright' coating to its farlux, bison and regatta binoculars.
Extra-low-dispersion (ED) glass: This expensive to produce glass compensates for chromatic aberration that normally occurs due to the differing dispersion of the light-beam colour components and is seen as colour fringing along edges and at transitions. ED glass ensures vivid true colour images, extremely rich in detail and with a sense of depth.
- Lens diameter
- Exit pupil/Brightness index/Twilight factor
- Field of view
- Near point
- Phase correction
- Dielectric mirror coating
- Internal focusing
- Nitrogen filled
- Extra-low-dispersion (ED) glass
|Item Dimensions||5.35 x 2.01 x 5.04 inches|
|Item Display Weight||618 grams|
|Item Weight||1 pound|
|Shipping Weight||3.31 pounds|
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|Sold By||Eschenbach Sports Optics||Adorama Camera||Outdoor Gear Fox||USCAMEL Group||Wingspan Optics||Gosky|
|Item Dimensions||2.01 x 5.04 x 5.35 in||3.15 x 7.6 x 5.94 in||2 x 4.9 x 5.5 in||3.15 x 7.36 x 5.75 in||4.5 x 4.5 x 1.75 in||2.1 x 5.75 x 4.96 in|
|Item Weight||1 lb||1.56 lbs||1.44 lbs||2.69 lbs||0.95 lb||1.54 lbs|
|Objective Lens Diameter||42 millimeters||42||42 millimeters||50 millimeters||32 millimeters||42 millimeters|
The best binoculars for birdwatching and nature trips
The sektor are the ideal binoculars for eagle watching or deer observation.
They combine true to-life images, durability and incredible lightness.
Their handy and functionnal design makes focusing child’s play and allows prolonged observation.
Well equipped with waterproof housing and nitrogen filling, the sektor binoculars can be used with sun glasses or in rainy weather.
These powerful inoculars are extremely robust and shock resistant.
The carrying strap, high quality case and dust protection caps offer even more value to this great pair of compact binoculars.
- Magnification: 10x
- Lens Ø (mm): 42
- Exit pupil (mm): 4,2
- Geometric light intensity: 17,6
- Twilight factor: 20,5
- Eye relief min./max. (mm): 6/15
- Pupillary distance min./max. (mm): 56/79
- Near point (m): 2
- Field of view m / 1,000 m: 87
- Height x Width x Depth (mm): 135 x 129 x 51
- Weight without bag (g): 618
- Nitrogen filled: Yes
- Waterproof: Yes
- Eyepieces for spectacle wearers: Yes
- Prisms: Bak-4, phase-corrected
- Coating: Full multi-coating
- Warranty: 5 years
What's in the box
Sektor D 10x42 binoculars; Carrying strap with quick-release fastener; High quality case; Practical dust protection caps
Top customer reviews
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What I like:
* They feel great: The rubbery grip covers the entire body, and is comfortable to hold. The hinge action is firm yet smooth.
* They are easy to use: It didn't take me long to learn how to use the focus knob for my left eye, and the diopter scale ring for my right eye. It did take me a minute to realize that the eyecups can be adjusted. Eyecup adjustment was important because without it I was having trouble getting a good view. Once I twisted the eyecups slightly (which put an extra half-inch or so between my eyes and the binocular lenses), everything looked great.
* The view is spectacular: When I look across the street with my naked eyes at the plants around the base of my neighbor's mailbox, I can't tell she has flowers. But with the binoculars on, I can clearly and cleanly make out the individual flower petals, as well as bees moving from flower to flower. Such a great view.
Honestly, now I'm hooked. These binoculars need to be with me anytime I'm outdoors, whether for looking at birds, watching a sporting event, or just to bring the world a little closer to me.
On a DSLR, a 400mm f/10 lens doesn't sound that great, but the image through these binoculars is very bright and sharp. When I first got them, I tested them out indoors, and everything looked just about as bright through the lenses as with the naked eye. Focusing is a snap, and the rubberized coating on the outside make these feel really solid and easy to grip. The hinge in the center moves smoothly and holds firmly in place.
They're extremely compact and come with a really nice nylon carrying cases that has extra pockets. The case has its own strap, and you also get a second strap to attach to the binoculars.
These are on the pricier end of 8x42 binoculars, but I think they're worth it if you want something with great magnfication, a very compact size, and excellent build quality.