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What Does 10×50 Binoculars Mean: 10×42 Vs 10×50 Binoculars

One of the most commonly seen numbers associated with binoculars is 10×50. In this article, we will explain what this number means and the advantages and disadvantages of each component.

Explanation of the first number (10)

The first number in 10×50 binoculars i.e 10 refers to the magnification power. Magnification is the degree to which an object is enlarged by the binoculars.

In simple terms, it means that the object will appear 10 times closer than it would with the naked eye. This is the reason why higher magnification power is desirable, as it allows us to observe distant objects more closely.

However, there are also disadvantages to high magnification power.

Firstly, it can be difficult to keep the image stable as the slightest movement can cause significant shaking.

Secondly, higher magnification power decreases the field of view, which means you may not be able to see as wide an area as you would with lower magnification. This can be a problem, especially when trying to locate an object.

Lastly, higher magnification can make the image appear dimmer, making it harder to see in low-light conditions.

Explanation of the second number (50)

The second number in 10×50 binoculars i.e 50 refers to the objective lens diameter, which is the diameter of the front lenses of the binoculars. The objective lens diameter plays a crucial role in the amount of light that enters the binoculars. The larger the diameter, the more light enters, resulting in a brighter image.

However, larger objective lens diameter also means the binoculars will be heavier and more expensive.

Additionally, larger objective lenses may lead to chromatic aberration, which is a phenomenon where colors in the image appear blurry or distorted around the edges.

This can be corrected through higher-quality lenses or special coatings, but it will also increase the cost of the binoculars.

Applications of 10×50 Binoculars

Here, we will explore the applications of 10×50 binoculars, specifically in birdwatching, astronomy, and other outdoor activities.

Birdwatching

10×50 binoculars are excellent for birdwatching because they allow for a close-up view of birds without disturbing them.

With 10x magnification, you can see details on the bird’s feathers, colors, and markings that would not be visible to the naked eye.

The 50mm objective lenses allow for a bright image, even in low light conditions. Additionally, the 50mm objective lens provides a wide field of view, making it easier to find and follow birds.

Some specific bird species that are best observed with 10×50 binoculars include raptors such as hawks, eagles, and owls. These birds are often found high in the sky, and the 10x magnification allows for a clear view of them in flight. Waterfowl, such as ducks and geese, are also ideal for observing with 10×50 binoculars, as they are often found in large flocks and can be seen from a distance.

Astronomy

10×50 binoculars are also useful for astronomy. They allow for a closer view of celestial objects such as the moon, planets, and star clusters.

With 10x magnification, you can see details on the moon’s surface, including craters and mountains. The 50mm objective lenses provide a bright image, making it easier to see faint objects in the night sky.

Some specific celestial objects that are best observed with 10×50 binoculars include the Orion Nebula, the Pleiades star cluster, and Jupiter’s four largest moons.

These objects are visible to the naked eye but are best observed with binoculars. With 10×50 binoculars, you can see them in greater detail and with a brighter image.

Vortex Diamondback 10×50 Binoculars

Other applications

10×50 binoculars are also useful for other outdoor activities such as hunting and sports events. In hunting, 10×50 binoculars allow for a closer view of game animals without getting too close and disturbing them.

In sports events, 10×50 binoculars allow for a closer view of the action, making it easier to follow the game.

Which is better, 10×42 or 10×50 binoculars?

Here, I will highlight the main physical differences and optical performance variances that you can anticipate between a 10×42 binocular and a 10×50 binocular of comparable quality.

I will differentiate and discuss them on factors such as Exit Pupil, Twilight Factor, Weight and Other major considerations.

Let’s discuss one by one:

Exit Pupil & Brightness

10×42 binoculars have an objective lens diameter of 42mm, while 10×50 binoculars have an objective lens diameter of 50mm. The larger objective lens diameter of 10×50 binoculars means higher exit pupil for 10x50s.

Exit pupil refers to the size of the beam of light that exits the eyepiece of the binoculars and enters your eyes. It is calculated by dividing the objective lens diameter by the magnification.

For 10×42 binoculars, the exit pupil is 4.2mm, while for 10×50 binoculars, it is 5mm. This means that the 10×50 binoculars will provide a larger exit pupil, allowing more light to enter your eyes, which can result in a brighter and more detailed image.

Twilight Factor & Low Light Performance

Twilight factor is another important factor to consider when choosing between 10×42 or 10×50 binoculars. It is calculated by multiplying the magnification by the square root of the objective lens diameter.

For 10×42 binoculars, the twilight factor is 20.5, while for 10×50 binoculars, it is 22.4. A higher twilight factor indicates better low-light performance, which can be beneficial for activities such as stargazing or wildlife observation at dawn or dusk.

Weight & Size

However, 10×50 binoculars are also typically heavier and bulkier than 10×42 binoculars, which can be a disadvantage if you plan on carrying them for long periods or on long hikes.

Also, The larger objective lens diameter of 10×50 binoculars means that they are generally bigger in size compared to 10×42 binoculars. This can result in the 10×50 binoculars being both taller and wider than their 10×42 counterparts.

For example, the Vortex Diamondback 10×42 binoculars measure in at a size of of 14.48cm x 12.95 cm(l x b)with a weight of 21.3 oz. In comparison, the Vortex Diamondback 10×50 has a size of 16.76 x 13.46 cm (l x b) and weighs in at 30 oz. As previously mentioned, this increase in size helps to accommodate the wider objective lens size. 

As binoculars increase in size, they typically require more glass for their lenses. Although this may not seem like a significant difference, it can affect the accessibility of the binoculars, particularly during extended use. If portability is a concern, then the 10×42 option may be a more suitable choice, as they are generally easier to carry around.

Other Consideration

When choosing between 10×42 or 10×50 binoculars, there are several other factors that should be taken into consideration besides exit pupil and twilight factor and size. These factors include the quality of eye relief, optics, coating, waterproof and fog proof features, and price.

Eye Relief

Eye relief is the distance between the eyepiece and the point where the eye can see the entire field of view. It is an important consideration for those who wear glasses or have poor eyesight.

Good eye relief allows for a more comfortable viewing experience and prevents eye strain. When comparing 10×42 and 10×50 binoculars, it’s important to check the eye relief for each model.

For example, the Vortex Diamondback 10×42 binoculars measure in at a eye relief of 15mm. In comparison, the Vortex Diamondback 10×50 has a size eye relief of 17mm which is very decent.

Optics Quality & Coating

The quality of the optics can also make a significant difference in the overall performance of the binoculars. The quality of the glass, the precision of the lens grinding, and the type of coatings applied to the lens can all affect the image quality. Higher-quality optics can provide a sharper, clearer, and more color-accurate image.

The coating is another important consideration when choosing binoculars. There are different types of coatings, including anti-reflective coatings, phase correction coatings, and dielectric coatings. These coatings improve the quality of the image by reducing glare, increasing light transmission, and enhancing color accuracy.

Waterproof & Fogproof

Waterproof and fog proof features are also important considerations, especially if you plan on using your binoculars in wet or humid conditions.

These features can prevent moisture from getting inside the binoculars and damaging the optics, as well as preventing fog from forming inside the lens, which can obscure your view.

Price

Finally, price is an important consideration for many people when choosing between 10×42 or 10×50 binoculars.

The price difference between 10×42 and 10×50 binoculars can vary based on multiple factors like brand, geographical location, and the price range you are considering.

Generally, 10×50 binoculars tend to be more expensive due to the larger objective lens diameter and higher quality optics. The price difference between these two options typically ranges from 10% to 40% more for 10×50 binoculars compared to the equivalent 10×42 binoculars.

For example, the Vortex Diamondback 10×42 binoculars cost $184. In comparison, the Vortex Diamondback 10×50 costs $263 which is 1.4 times approx the price of the 10×42 model. (Prices are as of writing the article date)

Also, There are affordable options available for both 10×42 and 10×50 binoculars, so it’s important to weigh the cost against the features and quality of each model.

Activity-10×50 or 10×42 binoculars

If you intend to use binoculars while hiking or travelling, the 10×42 option may be the better choice as it strikes a balance between weight and quality.

On the other hand, 10×50 binoculars are better suited for activities such as bird watching and stargazing, where the larger objective lens diameter can provide better image quality.

Also, Under normal daylight conditions, both 10×42 and 10×50 binoculars tend to produce similar image brightness and quality when using similar brands.

However, in low-light situations, the difference becomes more noticeable. In such cases, the 10×50 binoculars are preferable as they allow more light to enter the objective lens, resulting in a brighter and more detailed image.

Factors to Consider	10×42 Binoculars	10×50 Binoculars
Magnification	10x	10x
Objective Lens Diameter	42mm	50mm
Exit Pupil	4.2mm	5mm
Twilight Factor	20.5	22.4
Low-Light Performance	Good	Better
Weight	Lighter	Heavier
Size	More compact	Bulkier
Ease of Use	Easier to handle and carry	Can be heavier to carry for long periods
Tripod	May or May not need tripod	May or May not need a tripod

If you have decided to go for 10×50 binoculars let me elaborate on the factors to look out for your

Also Check:10×42 Vs 12×50 Binoculars

Factors to consider when choosing 10×50 binoculars

When choosing 10×50 binoculars, there are several factors to consider that can affect your overall experience with the product.

From your budget to the quality of optics, each factor can have a significant impact on the performance and durability of your binoculars. In this section, we’ll go over the most important factors to consider when choosing 10×50 binoculars.

Budget

One of the most important factors to consider when choosing 10×50 binoculars is your budget. The price range for these binoculars can vary widely depending on the brand and quality of optics.

It’s important to set a realistic budget for yourself and look for binoculars that fit within that range.

Keep in mind that while more expensive binoculars may offer better quality optics and features, there are also many affordable options that offer excellent performance.

Brand

The brand of the binoculars you choose can also be an important factor to consider.

While there are many brands on the market, some have a better reputation for producing high-quality binoculars than others.

Research different brands and read reviews from other users to get a better understanding of the quality of the binoculars they produce.

Quality of Optics

The quality of optics is one of the most important factors to consider when choosing 10×50 binoculars.

The quality of optics can affect the brightness, clarity, and sharpness of the image you see through the binoculars.

Look for binoculars with high-quality glass and coatings on the lenses to ensure a clear and bright image.

It’s also important to consider the quality of the prism system used in the binoculars, as this can affect the image quality as well.

Other Features to Consider

There are also several other features to consider when choosing 10×50 binoculars. One important feature is the durability of the binoculars.

Look for binoculars with a sturdy construction and a waterproof and fog-proof design to ensure they can withstand outdoor conditions.

Other features to consider include the size and weight of the binoculars, the ease of use, and the availability of accessories such as a carrying case or tripod mount.

Some Best 10×50 Binoculars Recommendations

1. Vortex Optics Diamondback HD 10×50 Binoculars

The Diamondback HD binoculars offer 10x magnification and 50mm objective lenses, providing exceptional resolution, color fidelity, and light transmission through select glass elements and fully multi-coated lenses with anti-reflective and dielectric coatings.

The adjustable eyecups and center focus wheel allow for comfortable and easy viewing, while the rubber armor provides a non-slip grip and external protection.

The binoculars are also tripod adaptable, purged with argon, and sealed with o-rings for water and fogproof performance in all environments. Additionally, they come with a GlassPak harness for easy carrying.

2. Nikon ACULON A211 10×50 Binoculars

The Aculon A211 10×50 binoculars are lightweight with comfortable ergonomics and Turn-and-Slide Rubber Eyecups for extended use.

The A-spherical Multicoated Eco-Glass Lenses provide bright and clear images in most lighting conditions.

The binoculars have a smooth central focus knob for easy focusing and a durable rubber-armoured coating for a non-slip grip, even in wet conditions.

3. Celestron Outland X 10×50 Binoculars

The Outland X binocular offers high resolution and contrast views with multi-coated optics and BaK-4 prisms for enhanced color fidelity. It is waterproof and fogproof, filled and sealed with dry nitrogen gas.

The binocular has a protective rubber covering for durability and anti-slip grip, and features twist-up eyecups for quick adjustment of eye relief.

It also comes with a Celestron Limited Lifetime US Warranty and access to technical support from their US-based team of experts.

4. Vortex Viper HD 10×50 Binoculars

The Viper HD binoculars offer 10x magnification and 50mm objective lenses, delivering exceptional resolution and clarity with XR anti-reflective lens coatings.

The rubber armored chassis provides superior ergonomics with thumb indents, while the locking right-eye diopter and center focus wheel provide fine focus control.

The binoculars are waterproof and fogproof with argon purging and o-ring seals and come with an included GlassPak Chest Harness for comfortable, all-day carry. The exterior lenses are protected with ultra-hard, scratch-resistant Armortek coating.

5. Opticron Imagic BGA VHD 10×50 Binoculars

The 10×50 Imagic BGA VHD Binoculars from Opticron are designed for low light conditions and woodlands, featuring a multi-coated VHD optical system and phase-corrected PGK prisms, making them ideal for accurate identification at long distances.

With a 58° apparent angle of view, 23mm eye relief, and rubber armoring around a waterproof chassis, these binoculars are built for the rigors of the field.

A Cordura case, neoprene neck strap, rainguard for the ocular lenses, and objective lens caps are included.

The Imagica binoculars are no longer available on major sites. You can opt for after-market or go for opticron discovery models

6. Opticron 10×50 Discovery

Opticron’s 10×50 Discovery WP PC Binoculars feature large objective lenses and fully multicoated optics to provide clear, high-contrast images in low-light conditions.

The binoculars also feature phase-corrected roof prisms that render lifelike colors and sharpness. The binoculars have a magnesium alloy housing that is nitrogen-filled and o-ring sealed, making it durable and able to perform in extreme weather conditions.

The binoculars also have twist-up rubber eyecups and a long 22mm eye relief, providing a comfortable viewing experience even for those wearing eyeglasses.

7. Leica Ultravid HD Plus 10×50

The Leica 10×50 Ultravid HD-Plus Binoculars feature SCHOTT HT extra-low dispersion glass, HDC and AquaDura coatings, P40 phase correction, and HLS coatings.

They provide bright and clear images with virtually zero distortion, even in low-light conditions. The chassis is made of a lightweight magnesium alloy and the binoculars are nitrogen-filled for fog proof performance and submersible to 16.4′.

A lubrication-free focus system provides fast and precise focusing, with PETP-Discs to provide smooth movement throughout the broad operating temperature range.

8. Swarovski EL 10×50 Binoculars

The Swarovski 10×50 EL50 Binoculars are designed for nature enthusiasts and experts, with multiple optical technologies to improve image quality in all lighting conditions, especially in low light.

Its wide viewing angle and powerful magnification make it ideal for medium to long-range viewing.

The binoculars employ SWAROVISION coatings and technologies to produce bright, clear, high-resolution images with accurate colors and virtually no distortion.

An Interesting Video:

Conclusion

The 10×50 binoculars can offer you a spectacular view of the colorful world out there, revealing a plethora of vibrant things waiting to be discovered.

With their superior optics and larger objective lens diameter, 10×50 binoculars allow you to see things more clearly and in greater detail.

Whether you’re exploring the great outdoors or gazing at the stars, 10×50 binoculars are an excellent tool to have. So, go ahead, grab a pair and head out to discover the beauty of our planet and sky.

Also Read: 10×50 vs 16×50 binoculars

Last update on 2024-11-05