How Far Can You See With 25x100 Binoculars? Find Out Here!

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Updated on: 

October 6, 2021

What Can You See With 25x100 Binoculars?

If you've been looking to getting yourself some powerful astronomical binoculars, you've likely come across models such as the 25x100 Celestron Skymaster binoculars and more.

Now, you've probably wondered, how far can you see with these binoculars? Well, the answer to that is you can see in-depth views of the moon, stars, galaxies and starfield at 2.7 degrees. 

In terms of how far you can see, this all comes down to external factors such as weather conditions, eye health and even location, so how far you can see will be different for everyone even with the same magnification.

There are some advantages and disadvantages to using these 25x100 binoculars which you might not have considered.

Advantages & Disadvantages Of 25x100 Binoculars

Some obvious advantages of 25x100 binoculars have to be there high magnification and large objective lens which allows these binoculars to perform to an excellent standard in low light conditions.

If you are looking for a pair of binoculars to pair with a tripod and see some detailed shots of the milky way or double star system then you will most likely love these binoculars, however, this is not to say they don't come without a few disadvantages.


Due to the wide objective lens on these binoculars, they let a lot of light into your image, allowing you to use them at night and see images clearly through the lenses.

This enables you to study and observe astronomical objects as well as have 3D views in comparison to a telescope, these binoculars gather more light than telescopes too.

  • Lots of light.
  • Great for viewing astronomical objects.
  • 3D views in comparison to a telescope.


25x100 binoculars do come with a couple of drawbacks, for example, the weight of these binoculars are very heavy, meaning you will need a tripod and would not be able to use these binoculars for hunting and birding.

The expensive binoculars also tend to lack centre focus knob options found on other binoculars.

  • Very heavy.
  • Not suitable for other activities such as birding.
  • Expensive and lack a centre focus wheel.

Overall, if your looking for a reliable pair of binoculars for astronomical purposes then a 25x100 pair of binos would be great for you.

As long as you don't mind not being able to hold them, use them for other activities and have a tripod on hand, you should thoroughly enjoy these binos.

How Far Can You See With Other Types Of Binoculars?

You might be wondering how far you can see with other binoculars that have a smaller magnification, we have listed out some of the common sizes below along with how far you can see.


8x42 binoculars mirror your actual eyesight in terms of distance and are not limited to shorter or longer distances when observing through there lenses.

The objective lens on these binoculars also gives a great field of view with a fair amount of light, making them ideal for activities such as bird watching.


10x50 binoculars allow you to see your image ten times bigger than with your own eyes and have a great width of the objective lens for greater light while observing.

These binoculars are best for safaris, outdoor projects and birding if you have a steady hand.


25x100 is allowing you to magnify objects such as terrestrial or planets and still enables you to see what you see with your naked eye, just 25 times bigger.

The wide objective lens on this model performs the best at night.


30x60 binoculars are perfect for astromancy viewing, but in comparison to a 100mm objective lens diameter, they only have 60mm, which makes them less suitable for tracking constellations.

Additional Factors To Consider In Your 25x100 Binoculars

If you've got your astronomy binoculars sorted with there 25mm magnification and 100mm objective lens diameter, there's a couple of other factors which are important to consider in your model.

  • Weight - Higher magnification and a wider objective lens will contribute to a heavier of weight 9lbs, this makes the astronomy binoculars not very portable, meaning you will need a tripod to view anything through these binoculars.
  • Eye relief - If you wear glasses its essential you ensure your model comes with at least a 15mm eye relief for a more comfortable experience when observing through the eyepiece.
  • Exit pupil - Always make sure the exit pupil of your 25x100's is big enough, the bigger this diameter then the higher quality picture you have.
  • Field of view - Field of view is important in these binoculars if you want to be able to spot constellations, 2/3 degrees should be more than enough as stars don't move around as birds do!
  • Durability - Waterproofing should be on your model as well as a fog-proof nitrogen-filled system.

Why You Can't Tell How Far You Binocular Can See?

You can't tell how far away your binoculars can see as this doesn't make sense.

Your binoculars can see the same distance as you, and the subject that you can see through them is the same distance away from you too, it's just the magnification on these binoculars which show the image as appearing as closer even though its at the same distance.

For example, if you are standing 300 feet away from an object and you view this object through your 10x magnification binoculars the object would appear as only being 30 feet away.

Tips For Using Powerful Binoculars

When using these powerful astronomical binoculars it's very important to ensure you are using them properly so as you can get the best image quality and spot the best objects in the sky quickly.

We have put together some tips below if it's your first time using astronomy bincoulars out on the night sky.

  • Get comfortable - Try using a garden chair to stargaze with as this can support your back while you gaze upwards for long periods.
  • Choose the best location - When choosing your location for star gazing you will want to ensure there are no external light sources that can obstruct your view.
  • Keep them steady - These heavy astronomical binoculars are not easy to hold still by hand and will need to be attached with a tripod or monopod which can provide more flexibility.
  • Stay warm - When stargazing at night, temperatures can drop quickly and ruin your experience if you are not dressed for the weather correctly. In this case, it is always best to layer up in case you get too cold.
  • Think about dew - Dew will inevitably form on your binoculars when the moisture within the air meets the binoculars surface. The best way to battle this is by folding the eyecups down for better air circulation and keeping the binoculars warm and dry.

Frequently Asked Questions About 25x100 Binoculars

Can I use these binoculars for birding?

No, the magnification and weight of these 25x100 binoculars is too much for normal birdwatching and likewise not portable enough.

What is a monopod and why are they good for these binoculars?

Monopods are great for binoculars as they only have one leg which is less disruptive than three-legged tripods when stargazing.

How do they differ to telescopes?

Binoculars allow you to view a 3D image through two eyepieces rather than one and tend to be much more portable and versatile than telescopes, allowing you to take them virtually anywhere.

Can I see the milky way with these binoculars?

Yes, you can see many planets and objects such as the milky way with 25x100 binoculars.

The magnification on these binoculars also allows you to pick out details in planets too.

Can a 20x80mm binocular work the same as a 25x100?

Yes, 20x80mm binoculars can still be used to sight planets and stars, and also tend to be much more portable than 25x100 binoculars.

However, they do have a little less magnification.

Born and raised in the south coast of UK, a small town close to Cornwall, I have adventure in my blood. Ever since a young age, I have always been into the great outdoors and particularly love watching the natural wildlife. Birdwatching is what I enjoy the most, and thus my natural interest in binoculars began. I founded and run Best-Binoculars.UK a site where I talk about various aspects of and review binoculars. Hope you enjoy my ramblings :)

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Born and raised in the south coast of UK, a small town close to Cornwall, I have adventure in my blood. Ever since a young age, I have always been into the great outdoors and particularly love watching the natural wildlife. Birdwatching is what I enjoy the most, and thus my natural interest in binoculars began. I founded and run Best-Binoculars.UK a site where I talk about various aspects of and review binoculars. Hope you enjoy my ramblings :)

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