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Steiner Observer

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Steiner Observer Binoculars.

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Description of Steiner Observer Binoculars

Observer series made by Steiner offers two all-round binoculars (8x42 and 10x42 configuration) that are versatile and suitable for birdwatchers, hunters and other nature enthusiasts. At affordable price, these binoculars offer lightweight product, that is well protected with its outstanding ruggedness and bright and clear images. This high-quality optics have decent field of view and close focusing distance, multi-positioned eyecups and central focusing mechanism for quick adjustments.

Basic Features

Observer series offers affordable binoculars that are incredibly durable due to NBR-Longlife rugged rubber armouring that helps with non-slip grip and protects the construction against impacts and abrasions. They will not yield in any kind of weather in temperature span between -15°C to +55°C. Armouring is also soundproof to help with silent observations in the nature. They are built out of polycarbonate Makrolon body which reduces the weight and makes these binoculars lighter and thus easier to carry in hands or around the neck for longer periods of time. Roof prism system also contributes to less weight and compactness so carrying is less fatiguing. Observer binoculars are equipped with multi-positioned eyecups to make proper eye-relief even for those wearing eye glasses. Soft tethered rubbery eyecups are made out of durable non-ageing silicone that feels comfortable when pressed against the face.

Optical Properties

Observers are fully multi-coated which means all their glass surfaces have layers of high-end optical coating. This technology helps with better light transmission rate, so the look through is very bright and lifelike with vivid colors, contrast and overall great resolution that can satisfy every enthusiast in the nature. This also helps with minimal distortions such as chromatic aberration. Observers offer central focusing with big stirring knob that is grippy and allows you to make quick and smooth adjustments even when wearing gloves due to Fast-Close-Focus mechanism. Left-eye diopter also helps to eliminate differences in both eyes.

Accessories

Steiner Observers are equipped with standard carrying neckstrap and padded case for storage. To protect them even more, they also include rainguards to protect the eyecups and covers for objectives. They are clipped on both barrels so you can easily add and remove them. This way the binoculars are protected against scratches and other impacts.

Features of Observer Binoculars

Polycarbonate Makrolon Housing
Fully Multi-coated
Roof Prism
Bak4 Prisms
NBR Rubber Armoring
Central Focusing
Left-eye Diopter
Waterproof and fog-proof (Nitrogen filling)
Tripod Adaptable

Accessories of Observer Binoculars

Standard Neckstrap
Case For Storage
Objective Lens Covers
Rainguards
Lens Cleaning Cloth

Available models of Observer binoculars

Observer 8x42	Allround hunting binoculars, short range, up to twilight
Observer 10x42	Allround hunting binoculars, long range, up to twilight

Warranty Terms and Conditions

Steiner gives 10 years of warranty for Observer binocular. The company repairs or replaces damaged products, without charge – exceptions are wear parts: rubber armoring, carrying straps, eyecups or lens covers are not in the scope of warranty.

You can learn more about our own warranty policy on the following link:

https://www.optics-trade.eu/en/warranty-policy.html

No matter what happens to your binoculars, we will be here to help you.

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Steiner Observer 8x56

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VIDEO

General properties

Hunting in low-light situations at dusk and dawn or even at night is especially popular in Europe and many binocular manufacturers are producing binoculars that are especially good in such situations.

Low light binoculars offer exit pupils with a diameter of approximately 7mm, which is the maximum value the human eye can use.

Low Light binoculars also offer very high light transmission rates and are built to gain as much light as possible.

Common features:

50 or 56mm objective lens diameter
High light transmission rate
7x or 8x magnification
Porro prism or Abbe Koenig prism system
Individual focusing for each eye (common in some low-light binoculars)
Exit pupil in diameter of at least 6mm

Importance of light transmission rate

The light transmission rate is of paramount importance in Low Light Binoculars because when using binoculars in low light conditions it is very important that all the light captured by the objective lens comes to the eye.

The light transmission rate depends on:

The quality of the glass,
The quality of the coatings on the lenses,
The prism type (Abbe Koenig and Porro are better than the Schmidt-Pechan, where up to 8% light is lost when compared with the first two).

Objective lens and magnification

Objective lens

It is very important that Low Light binoculars have a very large input lens (most often 50 or 56 mm ) in order to capture as much light as possible.

Magnification

By increasing the magnification, the exit pupil gets narrowed, so we see a less bright picture with binoculars with higher magnification. For this reason, the most common magnifications are 7x and 8x.

8x56 is the most optimal configuration, as the 56 mm objective lenses collect a great amount of light, and the 8x magnification has an exit pupil diameter exactly 7 mm which fits the human eye best. 7x50 configuration is slightly less common but usually more compact, also offering 7 mm exit pupil diameter. 8x56 and 7x50 are the golden standard for binoculars designed for using at dusk and dawn.

Importance of exit pupil diameter

It is optimal that the exit pupil diameter is exactly as large as the eye can widen. In a healthy eye (up to 50 years of age), the pupil can expand up to 7 mm.

The gain of light that passes through the binoculars is 100%. For those who are older and their pupil diameter does not expand up to 7 mm, the light gets lost, but still the binoculars with 7 mm exit pupil diameter remain the most comfortable binoculars to watch through.

Older people can choose8x50 or 8x42 in order not to carry such heavy binoculars and still see a bright enough picture. They will, however, be less comfortable to use, compared with 8x56.

Importance of prism type

Porro and Abbe Koenig prisms have a significantly better light transmittance, and therefore, in Low Light Binoculars we tend to this type of prism and not the Schmidt-Pechan. 8x56 configuration will be notably brighter with Abbe Koenig or Porro prism than with a Roof/ Schmidt-Pechan prism.

Binoculars with Porro prism

The design of Low Light Binoculars with Porro prism remained the same until today. This type of binoculars offers excellent light transmission. Usually, they have separate focusing for each eye. Their biggest advantage is excellent water tightness and the fact that they can be bought at a good price. The disadvantage is that they are extremely large and less comfortable than those with a Roof prism and they are heavy.

Low Light Binoculars with Abbe Koenig prisms

This is currently the most modern trend among Low Light Binoculars and is the best possible, as far as ergonomics and light transmittance are concerned. With this kind of binoculars, you get a light transmittance of a Porro prism and compactness almost the same as from the Schmidt Pechan prism.

Usually, these binoculars are larger with longer barrels. Their main disadvantage is high price and limited choice; only Zeiss, Docter and Swarovski are manufacturing them.

Binoculars with individual focusing

This system is only found on Porro binoculars. These binoculars are perfectly sealed against the ingress of water. Focusing is only set once in good light conditions and then we can leave it since it works well in all conditions.

They are a good solution for low light use because with a central focus you usually get confused in the dark, you do not know if it's sharp enough or not because you do not see well in the dark.

The big disadvantage is that the close focusing distance is very long (from 15 to 20 m onwards).

Binoculars with central focusing (left) and binoculars with individual focusing (right) Source: Optics Trade

Best Compact Low-Light Binoculars

There is no such thing as compact Low Light Binoculars - but some are smaller. The only ones who have succeeded in making slightly smaller low-light binoculars are Zeiss and Swarovski.

Best Zeiss Compact Binos

Zeiss offers a combination of special HT glass, Abbe Koenig prism and finishing T * coatings (8x54, which is about 20% smaller and lighter than the classic 8x56 binoculars with the same brightness, some also say it is the brightest pair of binoculars in the world).

Best Swarovski Compact Binos

Swarovski Habicht 7x42 has a Porro prism and is extremely lightweight and useful for hunting in the dark.

Difference between Low Light binoculars and NV Optics

As mentioned before, Low Light Binoculars perform great at dusk or dawn, but seeing in complete darkness is an entirely different thing. Compare to low-light binoculars seeing with NV Optics on a pitch-dark night is much better. However, NV Optics is not the best choice when there is some light (dusk or dawn). Too much light can cause some real damage to the cathode (image intensifying tube), which means that NV Optics can not be used in the day time.

Besides the fact that Low Light Binoculars can be used at the daylight, the resolution and image details are also much better. The image quality and sharpness are notably worse when it comes to the NV Optics (mainly Digital), and magnification is also lower as with low-light binoculars. In essence, this is also one of the reasons why image details are better seen with low-light binoculars.

Another useful feature of binoculars is that they can be adjusted to different light levels, but the downside is that they are more prominent and much more massive than NV Optics.

Importance of lens coating

Optical devices have a lot of glass surfaces in their optical construction. If the manufacturers weren't using special coatings on the glass surfaces, a lot of light would be lost when traveling through the optical device. Zeiss was the first company to realize that coatings on the glass surface help minimize the loss of light.

Before the use of coatings, the light loss was around 30-50%. With added coatings, the decline was only about 20%. Another useful feature of applying coatings to the lens is the absence of the flash.

The application of different coatings on the glass surface has a very beneficial effect on the light transmission rate and helps to improve the optical performance of the device.

Different ways of applying the lens coatings:

Coated: some lens surfaces are coated with one anti-reflective layer of material (usually metal or similar)
Fully coated: all the surfaces on all lenses in the optical device are coated with one layer of material
Multi-coated: some lens surfaces are coated in multiple layers
Fully multi-coated: all glass surfaces are coated in multiple layers

Today the most famous and popular lens coatings are T*Coating from Zeiss and Diamond coating from Steiner. T*Coating eliminates the effect of stray light, while Diamond coating delivers the best clarity and contrast.

Low Light performance and quality of Range Finding Binoculars

In general, the rangefinding technology lowers the light transmission of binoculars. This means that for proper use in low light conditions, the objective lens diameter has to be around 56mm. Only the best rangefinding binoculars with excellent optical performance do not have a problem with light transmission rate, while binoculars of lower quality suffer from it.

Best Rangefinding Binoculars for use in Low Light conditions

Leica Geovid 8x56 3200.COM,
Leica Geovid 8x56 HD-R 2700, and
Zeiss Victory RF 8x54.

Best Low Light Binoculars for hunting

The best low light binoculars are made by

Zeiss,
Steiner,
Swarovski, and
Fujinon.

Best Zeiss Low Light Binoculars

Zeiss Victory HT series features Abbe Koenig prisms and special HT glass, which was made especially for observing when light conditions are not ideal.

Best Steiner Low Light Binoculars

Nighthunter series from Steiner is famous for its usability in low light conditions, and fully-multi coated glass. The series features Porro prisms, which perform great in low light. Porro prisms also offer a focusing system separated for both eyes.

Best Swarovski Low Light Binoculars

SLC binoculars are the first and only binoculars from Swarovski that features Abbe-Koenig prisms. Thanks to the fully-multi coatings on all lenses, the image is razor-sharp and free of any distortions.
Another great low light pair of low-light binoculars from Swarovski are Habicht 7x42 GA. Binoculars with Porro prism provides incredibly bright, colorful, and sharp images. It comes with green rubber armor for protection against corrosion and abrasions.

Best Fujinon Low Light Binoculars

The last on the list of best low light binoculars is Fujinon 7x50. Like Nighthunter binoculars, Fujinon features Porro prisms and individual focusing system. It provides focusing on each eye separately, which is a significant advantage since you can set it only once. Once the system is set, the eyes focus on different distances by themselves.

A short presentation of Low Light Binoculars is available here.

Slideshare Presentation of Low Light Binoculars

Short Presentation | Low light binoculars | Optics Trade de Optics-Trade

Steiner Observer Binoculars.

VIDEO

Description of Steiner Observer Binoculars

Basic Features

Optical Properties

Accessories

Features of Observer Binoculars

Accessories of Observer Binoculars

Available models of Observer binoculars

Warranty Terms and Conditions

Steiner Observer 8x56

VIDEO

General properties

Common features:

Importance of light transmission rate

The light transmission rate depends on:

Objective lens and magnification

Objective lens

Magnification

Importance of exit pupil diameter

Importance of prism type

Binoculars with Porro prism

Low Light Binoculars with Abbe Koenig prisms

Binoculars with individual focusing

Best Compact Low-Light Binoculars

Best Zeiss Compact Binos

Best Swarovski Compact Binos

Difference between Low Light binoculars and NV Optics

Importance of lens coating

Low Light performance and quality of Range Finding Binoculars

Best Rangefinding Binoculars for use in Low Light conditions

Best Low Light Binoculars for hunting

Best Zeiss Low Light Binoculars

Best Steiner Low Light Binoculars

Best Swarovski Low Light Binoculars

Best Fujinon Low Light Binoculars

Slideshare Presentation of Low Light Binoculars

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