Eschenbach sektor D 8x56 green compact binoculars for adults for bird watching and more
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- Best binoculars for adults with BaK-4 phase corrected prisms and full multi-coated lenses
- High powered binoculars for hunting, for bird watching and nature observation
- Lightweight compact binoculars with a stable tripod thread for shake-free and sharp observations
- Durable and shock resistant binoculars thanks to a magnesium body
- Waterproof housing and nitrogen filling prevent misting of the internal optics if temperature fluctuates
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From the manufacturer
Eschenbach’s story started with an idea: precision. This is a guiding principle that we still follow today - as a brand, as a company and as a developper of quality optical products.
Another guiding principle Eschenbach follows is progress based on tradition - a strategy that we continue to pursue. Because it’s only with traditional values like experience, skill and vision that innovation is possible: time and time again. This is our promise. For over 100 years.
Choose well and quickly
The sektor D 8x42 compact + are all-terrain and easy to handle binoculars. They are the ideal combination between weight, size and visual comfort. On holiday or for sports, to minimize the weight to carry, we suggest the sektor with an 8x magnification which objective is as compact as possible such as sektor F 8x25 compact + for example. In the mountains, opt for 10x magnification sektor to be sure to see the desired object the closest you can. If the brightness is low (bad weather, twilight), go for the largest diameter lens binocular: sektor D 8x56 compact + for example.
The phase correction is made exclusively on roof prisms , the porro prisms can not benefit from it. Through a complex technology, the phase shifts of the lightrays are corrected on BK-7, BAK-4 and SK15 prisms. The sektor binoculars are made with BaK-4 prisms, so they got phase correction.This phase correction optimizes the resolution and contrast of images.
The sektor are equipped with full multi-coated optics. This consists in treating all the lenses with antireflection layers. This technology allows the light to cross the binoculars with limited loss of brightness. The basic treatment is a magnesium fluoride one. However, high quality binoculars such as the sektor range benefit also from a treatment of the objective, the eyepiece, and then a treatment of all the lenses.
Use your binoculars correctly
First, position diopter on 0 (usually located on the right eyepiece, more rarely on the left eyepiece or scroll wheel ). Set the folding in order to have an image in each eye. Once you have an image in each eye, close the right eye and adjust the sharpness for the left eye with the focus wheel. Then close the left eye and adjust the sharpness for the right eye. Open both eyes : you are ready to go!
|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||7.4 x 2.56 x 5.51 inches|
|Item Display Weight||1.038 grams|
|Item Weight||1 pound|
|Shipping Weight||3.44 pounds|
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This item Eschenbach sektor D 8x56 green compact binoculars for adults for bird watching and more
|Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping|
|Sold By||Amazon.com||Wingspan Optics||USCAMEL Group||Amazon.com||Amazon.com||Wingspan Optics|
|Item Dimensions||2.56 x 5.51 x 7.4 in||4.5 x 4.5 x 1.75 in||3.15 x 7.36 x 5.75 in||8.2 x 9.3 x 4.2 in||56.2 x 68.5 x 26.3 in||5 x 5.75 x 2 in|
|Item Weight||1 lb||0.95 lb||2.69 lbs||18.3 lbs||2.5 lbs||1.62 lbs|
|Objective Lens Diameter||56 millimeters||32 millimeters||50 millimeters||50 millimeters||56 millimeters||42 millimeters|
One of the lightest hunter‘s binoculars on the market
The sektor are the ideal binoculars for adults who have a special relationship with nature. Perfect binoculars for hunting and nature observation, they combine true to-life images, durability and incredible lightness. Their handy and functionnal design makes focusing child’s play, even with just one hand, and allows prolonged observation. Well equipped with waterproof housing and nitrogen filling, the sektor binoculars can be used as well with sun glasses or even in rainy weather. With a polycarbonate and magnesium body, these binoculars 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: 8x
- Lens Ø (mm): 56
- Exit pupil (mm): 7,0
- Geometric light intensity: 49,0
- Twilight factor: 21,2
- Eye relief min./max. (mm): 7/18
- Pupillary distance min./max. (mm): 65/74
- Near point (m): 1,8
- Field of view m / 1,000 m: 114
- Height x Width x Depth (mm): 176 x 141 x 65
- Weight without bag (g): 1038
- 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 8x56 binoculars; Carrying strap with quick-release fastener; High quality case; Practical dust protection caps
Top customer reviews
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.