10×42 vs 10×50 Binocular | Exploring the Pros and Cons

When it comes to choosing the right binoculars for your outdoor activities, there are a lot of factors to consider.

One of the most important factors is the size of the objective lens, which determines how much light can enter the binoculars and how bright and clear the image will appear.

Two popular sizes for objective lenses are 42mm and 50mm, and many people wonder which one is better: 10×42 or 10×50 binoculars.

We will take a closer look at both options to help you make an informed decision.

• The Basics: What Does 10×42 and 10×50 Mean?

Before we dive into the differences between 10×42 and 10×50 binoculars, let’s quickly review what those numbers mean.

The first number (10x) refers to the magnification power of the binoculars. This means that the image you see through the binoculars will appear 10 times closer than it would with the naked eye.

The second number (42 or 50) refers to the diameter of the objective lens in millimeters. This is the lens located at the front of the binoculars that collects light and allows you to see the image.

• What are 10×42 Binoculars?

10×42 binoculars have a magnification power of 10x and an objective lens diameter of 42mm. 

This makes them a popular choice for a wide range of outdoor activities, including birdwatching, hunting, and hiking.

The 42mm objective lens allows a decent amount of light to enter the binoculars, resulting in a bright and clear image.

At the same time, the 42mm lens keeps the overall size and weight of the binoculars relatively compact and easy to carry.

• What are 10×50 Binoculars?

10×50 binoculars have a magnification power of 10x and an objective lens diameter of 50mm. This makes them slightly larger and heavier than 10×42 binoculars.

The larger objective lens allows even more light to enter the binoculars, resulting in an even brighter and clear image.

This can be particularly useful in low-light conditions, such as early morning or late evening.

Now that we have a basic understanding of what 10×42 and 10×50 binoculars are, let’s take a closer look at the differences between the two. 

• Size and Weight

The most obvious difference between 10×42 and 10×50 binoculars is their size and weight. 10×50 binoculars are generally larger and heavier than 10×42 binoculars.

This can make them more cumbersome to carry around, particularly if you are planning on hiking or backpacking with them.

On the other hand, the larger size and weight of 10×50 binoculars can make them feel more stable in your hands and easier to hold steady.

• Light Gathering Ability

One of the main advantages of 10×50 binoculars over 10×42 binoculars is their ability to gather more light.

The larger objective lens of 10×50 binoculars allows more light to enter the binoculars, resulting in a brighter and clearer image.

This can be particularly useful in low-light conditions, such as dawn, dusk, or cloudy days.

• Field of View

The field of view is the area visible through the binoculars when you look through them. It is typically measured in degrees or feet at a certain distance.

10×42 binoculars generally have a wider field of view than 10×50 binoculars. This means that you can see more of the surrounding area.

Related: Best Binoculars for Hunting Under $1000

Choosing between 10×42 and 10×50 binoculars ultimately comes down to personal preference and intended use.

If you are looking for a compact and lightweight option that can still provide a bright and clear image, 10×42 binoculars may be the way to go.

On the other hand, if you plan on using your binoculars in low-light conditions or want the best possible image quality, 10×50 binoculars may be the better choice.

Can I use 10×50 binoculars for birdwatching?

Yes, 10×50 binoculars can be a great option for birdwatching, particularly in low-light conditions. 
The larger objective lens will allow you to see more detail and color in the birds you are observing.

Are 10×42 binoculars good for hunting?

Yes, 10×42 binoculars can be a great option for hunting. The compact size and weight make them easy to carry around.
While the 42mm objective lens still provides a bright and clear image.

Can I use 10×50 binoculars for stargazing?

Yes, 10×50 binoculars can be a good option for stargazing, particularly if you are looking for a portable and affordable alternative to a telescope.
The larger objective lens will allow you to see more stars and detail in the night sky.
However, keep in mind that binoculars are not designed specifically for astronomy, and you may want to consider a telescope if you are serious about stargazing.