Binoculars > Instruments > Barr and Stroud > Series 4 > Barr and Stroud Binoculars Series 4 8x42

Product no.: 45583

Binoculars Series 4 8x42

Name: Barr and Stroud Binoculars Series 4 8x42
Brand: Barr and Stroud
Price: 177 USD

$ 177.00 incl. VAT, plus shipping costs

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Product description

More about the series Series 4...

Specifications

Capacity

Performance data enables binoculars to be compared with one another.

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Type of build

Describes the internal structure of a pair of binoculars, thereby further subdividing the different types.

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Roof

A compact and modern binoculars design, in which the objective lens and the eyepiece lie in a straight line.

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Magnification

The first number in the binoculars’ model number represents the magnification. It specifies how much larger an object appears compared to when viewed with the naked eye.

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Front lens diameter (mm)

Front lens diameter

The second specification in the binoculars’ model number is the front lens diameter. The larger it is, the more light the binoculars collect.

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42 is the answer to the ultimate question “of life, the universe, and everything” (according to Douglas Adams)

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Exit pupil (mm)

Exit pupil

Relates to the beam of light emitted by the eyepiece. The exit pupil is closely associated with the brightness of a pair of binoculars.

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5,25

Eye relief (mm)

Eye relief

The eye relief specifies the maximum distance from the eyepiece at which the entire field of view can still be seen. A suitable distance for spectacles wearers is >16mm.

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15,2

Eyepiece cups

The eyecups are located on the eyepieces and protect they eyes from stray light.

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rotatable

Diopter compensation

Dioptre compensation

Dioptre compensation can be used to compensate for differences between the right and left eye.

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+/- 4

Interpupillar distance (mm)

Interpupillary distance

The interpupillary distance indicates how far the eyepieces or tubes can be pushed together or pulled apart. This is an important indication, since each person has a different interpupillary distance.

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56-74

Glass material

A distinction is made between different glass materials. Through the use of special types of glass, the optical image can be optimized.

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BaK-4

A binoculars prism made of Barium Crown glass that is commonly used in high-quality binoculars. It is a byword for bright neutral images and high resolution.

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Lens coating

Coatings on optical surfaces have the job of minimising annoying reflections. In this way light transmission and contrast is increased.

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Phase coating, full multi-coating

Ensures high resolution and good contrast.

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Focusing system

Binoculars are focused by focusing on the object, or rather the eyes of the observer.

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Central focusing

The sharpness is adjusted via a central focusing wheel.

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Special features

Binoculars can be equipped with additional functions such as an image stabilizer or a zoom.

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Eyepieces for spectacle wearers

These eyepieces have a relatively large eye relief. It is possible to wear spectacles while observing and still benefit from a comfortable viewing position.

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yes

Rangefinder

An automatic or manual feature for measuring distances.

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Splash-proof

These binoculars may only be exposed to moderate moisture or light drops of water.

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yes

Protection bag

yes

Threaded tripod connector

A 1/4" thread for connection to a photographic tripod. Most binoculars require an additional tripod adapter.

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yes

Watertight

Watertight optics are equipped with special seals and are gas-purged. This is usually with nitrogen or argon gas. Since these gases are heavier than air, they cannot escape.

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yes

inert gas charge

yes

Field of view

Information about the field of view enables binoculars to be more easily compared with one another.

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True field of view (°)

True field of view

The angular field of view visible with the binoculars.

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6,5

Field of view at 1,000 m (m)

Field of view at 1,000 m

The visible field in meters, that can be seen from a distance of 1,000 meters. This information is often more easily visualised as an angular measurement.

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114

Close focus limit (m)

Close focus limit

The shortest distance which can still be seen sharply through binoculars.

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4,5

Light intensity

The geometric light intensity is a theoretical value. It is an indication of the expected brightness of the image.

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16,8

Twilight factor

Used to compare binoculars’ performance in low light conditions. The higher the number, the more suitable it is for twilight. However, the value should always be considered in connection with the exit pupil.

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20,5

General

Surface material

Binoculars are usually equipped with an armouring that protects the binoculars and makes them easier to grip.

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Rubber armouring

Colour

green

Length (mm)

150

Width (mm)

126

Height (mm)

Weight (g)

650

Series

Series 4

Perfect binoculars for hiking and walks in the country.

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Area of application

The areas of application help you to choose the right binoculars for your purpose.

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Astronomy

You are fascinated by the stars, but don't want to set up telescope right now? You can immerse yourself in the world of astronomy using many binoculars.

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middle

Bird watching

Blackbird, thrush, finch or starling?
Binoculars helps to spot and identify the bird.

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good

Hunting

Do you want to stay in the hide until dusk, or do you prefer to stalk game? We have the right binoculars for you!

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good (Allrounder)

Travel and sports

good

Sailing

Even the sailors of old used binoculars to orient themselves on the high seas. In some cases, modern binoculars even offer a built-in compass and a reticle for estimating distances.

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good

Theatre

Whether it's serious opera, a romantic operetta, folk theatre or a musical; with opera glasses or small binoculars, you'll be part of the action.

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not recommended

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