Celestron Skymaster 15×70 vs 25×70

Celestron Skymaster 15×70 – In case you are searching for a fresh set of binoculars, it is quite natural for you to feel rather overwhelmed while doing so.

The reason for this happens to be the fact that there are so many different types of binoculars on the market at present although you can make things simpler by opting for the immensely popular Celestron Skymaster 15×70.

As a matter of fact, this product from Celestron Skymaster happens to be one of the most well-liked entry-level binoculars at present.

In case you would like to compare this product with another model from the same company then the Celestron Skymaster 25×70 ought to be at the top of the list.

It is a fact that every single model manufactured by this company is reputable plus designed immaculately.

However, the difference between these 2 versions is mainly the magnification aspect given that both of them offer identical ability to gather light.

In the subsequent paragraphs, we have provided comprehensive information on the topic: Celestron Skymaster 25×70 vs 15×70. Feel free to go through this info mentioned below so as to make a prudent choice.

1. Celestron Skymaster Series- 15×70 vs 25×70

SpecificationCelestron Skymaster Series- 15×70Celestron Skymaster Series- 25×70
Angle of View4.4 02.7 0
Environmental ProtectionWater - ResistantWater - Resistant
Exit Pupil Diameter4.7 mm2.8 mm
Eye Relief18 mm13 mm
Field of View231.0' @1000 yd/77.0 m @ 1000 m141.00' @ 1000 yd / 46.81 m @ 1000 m
Focus TypeCenterCenter
Lens CoatingsMulti-CoatedMulti-Coated
Magnification15 x25 x
Minimum Focus Distance49.2' / 15 m75.5' / 23 m
Objective Lens Diameter70 mm70 mm
Tripod AdaptableYesYes
Weight3 lbs / 1.36 kg3.25 lbs / 1.47 kg

Specification :

i. Prism: It is a fact that all the models produced by this company are manufactured with Porro Prisms. These prisms have the ability to procure and also use light flawlessly for showing the images in a better way.

The Porro prisms are known to offer greater field depths as well. They come with a wider FOV too.

ii. Magnification: We will now take into consideration the strength of these binoculars. In fact, “25×70” and “15×70” actually refer to the magnification as well as the diameter of the front lenses (Objective Lenses).

These numbers help us to comprehend what we are able to visualize and also in what exact level of detail while using them. Magnification is going to be displayed against the power of our naked eye.

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On the contrary, diameter happens to be the exact measurement of those lenses which are positioned at the front of the devices.

Therefore, a “25×70” binocular implies that it will magnify the image 25 times more than what we see in our naked eyes and this is being done by means of the lenses whose diameter is 70 mm.

In the same manner, a “15×70” binocular is going to magnify the image by 15 times as that of the original one and this will be done by means of the lenses whose diameter happens to be 70 mm.

Thus, it is evident that the “25×70” version from SkyMaster is going to provide more magnification than the other; however, since both models come with the same 70 mm lenses, there is no difference in the sharpness of the images whatsoever.

iii. Objective lens diameter

iv. Angle of view: This is actually the technical term of what portion of the sky you will be able to visualize at any particular time.

In case you observe the specification table, you will find that the Celestron Skymaster 15×70 offers more angle of view (4.4?) as compared to its counterpart.

It is, in fact, 2.7?. Therefore, it is implied that the 15×70 will allow us to see more sky at any given time.

v. Field of view: This actually means the width of the image which you are able to visualize and it is linked to the magnification of the devices very closely.

On most occasions, it is better to go for a higher FOV in case you like to observe any object that moves in the sky.

However, the magnification is going to decrease with an increase in the FOV and you will not be able to have both simultaneously. The 15×70 model comes with a better FOV as compared to the 25×70.

vi. Minimum focus distance: This is the shortest distance which a lens will be able to focus. It is going to figure out your ability to observe the intricate details of the celestial objects out there.

As a matter of fact, the minimum focus distance is likewise linked to magnification to a great extent. The 25×70 version is going to offer greater minimum focus distance as compared to its counterpart.

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vii. Exit pupil diameter: This particular feature implies the light which is being produced by means of the eyepiece.

It is actually the measurement of the light which is calculated in millimeters and for this, you need to divide the objective lenses’ length by the magnification. The binoculars will perform better in

conditions where there is less illumination in case the exit pupil diameter is bigger. In fact, it will allow the images to appear much brighter.

It is imperative for the exit pupil diameter to be referenced against the pupil dilation of your own eyes. Eyes can dilate somewhere between 5 mm and 9 mm for most individuals out there.

In case the binoculars provide more as compared to the dilation of the eyes, plenty of flight is going to be wasted.

Considering all these, the 15×70 model from Skymaster will offer more light into the eyes thus enabling you to see more with them.

viii. Eye relief: This refers to the distance between the eyepieces and your eyes and it is usually calculated in millimeters.

Anything below 10 mm is going to be undesirable when it comes to eye relief, and for this reason, SkyMaster offers more than this for its models.

As a matter of fact, the SkyMaster 15×70 is going to offer higher eye relief unlike the other model in question. Moreover, it is also going to be comfier to use as well.

ix. Focus type: Every single product manufactured by Skymaster comes with a Center Focus. This implies that you are going to have one central wheel that will allow you to focus in and out of the celestial objects.

This wheel is going to provide you with flexible views. You can also change the focus quickly and easily according to your likings.

x. Tripod adaptable

xi. Weight: You must consider the binoculars’ weight as well while purchasing them. In case you like to observe the sky for a considerable period of time, the lightweight model will be ideal for you.

As a matter of fact, Celestron Skymaster 15×70 is lighter by as much as 0.25 pounds which makes them appropriate for carrying around. You can also hold them for a longer time without any discomfort whatsoever.

Nevertheless, both of these versions come with a Tripod Adapter as well. You can attach the binoculars to these adapters which are actually 3-legged bases.

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Although you might not prefer using them all the time, these will nevertheless make your viewing process much easier and more comfortable. You will also be able to focus in a much better way.

xii. Environmental protection: Both of the models discussed here happen to 100% water-resistant.

xiii. Lens coatings: Both of them are multi-coated as well.

xiv. Price: While the cost of the 15×70 version is $64.99 that of the 25×70 happens to be $65.95.

2. Why they’re great for beginners?

In case you are about to start your journey in the field of astronomy, it will be imperative for you to try any of these 2 models manufactured by Skymaster. Below we have mentioned why these are ideal for any beginner out there.

i. Cost – Price is going to be a vital factor that you must consider being a beginner. Nobody likes to shell out a considerable amount of money for pursuing a hobby which they might not stick to in the long run.

ii. Waterproof – Despite the fact that this particular aspect is not imperative while watching the night sky, having water-resistant equipment will undoubtedly be a good idea.

If you are going for a hike, taking these binoculars along with you can be a fantastic idea due to the fact that both of these are 100% waterproof.

iii. Porro Prisms – Every single binocular manufactured by this company come with an innovative Porro Prism design, unlike the roof prisms.

When it comes to price, Porro Prisms are going to be a better choice despite the fact that these are not comparable to those binoculars which come with roof prisms in terms of image quality.

However, Porro prisms are going to be appropriate for any novice out there.

iv. Light – It is quite natural for any beginner to go for portable and easy to carry equipment. Binoculars are meant to be carried around, and these products from SkyMaster happen to be quite light in weight as well.

3. Conclusion

We like to conclude this article by asserting that both the Celestron Skymaster 15×70 and the Celestron Skymaster 25×70 can boast of having lots of positive reviews on the web.

Therefore, it depends entirely on you which model you like; however, it is a fact that none of them will disappoint you in the long run.


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