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Binoculars > Instruments > Dörr > Alpina Pro > Dörr Binoculars Alpina Pro 20x50

Dörr Binoculars Alpina Pro 20x50

Dörr

Product no.: 6211

Binoculars Alpina Pro 20x50

$ 91.00 incl. VAT, plus shipping costs

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Product description Specifications Recommended accessories Customer reviews (0)

Product description

More about the series Alpina Pro...

Alpina Pro Porro Prism Binoculars

Universal performance binoculars in the classical porro prism design. Coated optics avoid reflections while viewing. The optical construction with large exit pupil ensures bright and brilliant images even under difficult light conditions. You have the choice of 5 different magnifications. All 5 binocular types are fitted BK7 prisms. They are extremely handy due to their ergonomically shaped green/black rubber armour and the comfortably large centre focus wheel.

Protection bag included.

Specifications

Capacity

Capacity

Performance data enables binoculars to be compared with one another.

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Magnification

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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20

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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50

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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2,5

Type of build

Type of build

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

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Porro prisms

Porro prisms

A classic binoculars design, in which the objective lenses are slightly further apart than the eyepieces.

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Eyepiece cups

Eyepiece cups

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

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folding

Special features

Special features

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

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Zoom function

Zoom function

The binoculars’ magnification may be variably adjusted using either a lever or a scroll-wheel.

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-

Image stabilizer

Image stabilizer

Compensates for the natural trembling of the hands. The picture is so stable, as if you were observing using a tripod.

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-

Compass

Compass

On these models, the compass display is usually shown in a small part of the field of view. A distinction is made between digital and manual versions.

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-

Rangefinder

Rangefinder

An automatic or manual feature for measuring distances.

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-

Splash-proof

Splash-proof

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

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yes

Eyepieces for spectacle wearers

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

Threaded tripod connector

Threaded tripod connector

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

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-

Watertight

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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no

Field of view

Field of view

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

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Apparent field of view (°)

-

True field of view (°)

True field of view

The angular field of view visible with the binoculars.

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3,3

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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58

Light intensity

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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6,3

Twilight factor

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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31,6

General

Weight (g)

780

Series

Alpina Pro

Alpina Pro

Powerful all-purpose binoculars in the proven Porro prism design, with or without zoom.

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Surface material

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

black

Area of application

Area of application

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

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Astronomy

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

Travel and sports

middle

Hunting

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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not recommended

Sailing

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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not recommended

Theatre

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

Bird watching

Bird watching

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

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not recommended

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*All prices include VAT plus shipping costs.

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Dörr Binoculars Alpina Pro 20x50

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