Celestron SkyMaster 25×70 Binoculars Review

Celestron SkyMaster 25x70 BinocularsThe Celestron SkyMaster 25×70 Binocular is a large aperture product that is designed for high performance for use in viewing astronomical objects or for long distance land viewing.

These high powered precision binoculars are engineered to meet the expectations and demands of individuals who need the advanced magnification boost to bring objects which are at a far distance into a clearer and larger image.

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Colors, contrast and brightness are enhanced by the use of High quality BAK-4 prisms which increase the integrity of the color distribution and lessen distortion.

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The large 70 mm objective lens provides for maximum brightness of the image in both long range and low light conditions.

Crispness and clearness of the image is improved with multiple layers of specialized optics coating on the lenses.

These Celestron binoculars is perfect for celestial viewing and enlarging images that appear in the night sky.

Celestron SkyMaster Specifications

Celestron SkyMaster 20x80Celestron SkyMaster 25x70Celestron SkyMaster 25x100



Lens Coating

Multi-Coated BAK-4Multi-Coated BAK-4Multi-Coated BAK-4

Angular Field of View


Close Focus

108 ft 75 ft80 ft

Eye Relief



75 oz.52 oz.140 oz.


12 x 7 x 16 inches11 x 14 x 6 inches18.2 x 11.6 x 6.7


Main Usage

Celestron SkyMaster 25x70 BinocularsThe main uses for the Celestron SkyMaster 25×70 are for celestial and long distance land viewing.

The high level of magnification, set at 25 brings the distant objects closer for a more detailed view of them.

The 70mm objective lens complements the magnification strength by allowing for increased brightness of the object which is necessary when used in night time lighting environments.

Spotting aircraft, meteors, and other celestial bodies are good uses for this product.

Sighting objects from long distances on the land is another suitable use for this product.

Watching whales from the shore, spotting islands and other marine uses are possible.

Hunters who are spotting game from a long distance as a precursor to hunting season may be able to detect herds more easily as they prepare to set the location of their camps.

Spotting herds or wild horses or other wildlife at a great distance is also a use for this model.

Anything that requires long distance viewing can be done with the advanced magnification and brightness options of the Celestron SkyMaster 25×70 binocular.

Glass and Lenses

Celestron SkyMaster 25x70 BinocularsThe lenses are designed to provide clear and sharp images when objects are viewed from a long distance. Specialized lens treatments are applied in multiple layers to maximize the sharpness and clearness of the images.

The coatings are innovations in design that help to lessen or eliminate the factors that can lead to distortion of clarity, sharpness and image crispness.

They also serve as a protection from the adverse effects of weather such as high humidity, mist, rain, snow or other types of moisture.

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25X magnification strength helps to make this product suitable for long distance viewing for land, sea and sky environments.Celestron SkyMaster 25x70 Binoculars

Astronomy buffs benefit from viewing celestial bodies closer up so they can see more of the details of the object.

Celestial activities that are not observable through the naked eye are brought into the field of view. The apparent field of view value for this product is 2.7 degrees.


Image Quality

Celestron SkyMaster 25x70 BinocularsHigh quality images are produced by the features included in this product.

The twilight factor is 41.83 which enhance night viewing with the appropriate levels of contrast and brightness.

The BAK-4 Porro prism system produces a true color value for limited representation and a more accurate rendering of the image.

The relative brightness is of the Celestron SkyMaster is 7.84. Multi-coating lens treatment provides for sharper clearer images in diverse lighting conditions.

The focusing knob allows for bringing the image into the clearest possible focus for detailed viewing of distant objects.

Eye Relief

The eye relief is considered to be long, at 13mm. This makes it ideal for users who wear eye glasses.

A common issue for binocular use is that there is not enough distance to comfortably or effectively use them simultaneously with eye glasses.

That is an issue that has been resolved with the Celestron SkyMaster 25×70 binoculars.

Celestron SkyMaster 25x70 Binoculars


The Celestron SkyMaster 25X70 provides clear and sharp images at a high level of magnification for viewing objects at a far distance.

They are great for viewing celestial objects and events as well as use for spotting aircraft, objects on the sea, wildlife and other land uses. The brightness of this product provides for high quality night time viewing.

Additional accessories included are the tripod adapter and a convenient carrying case to keep the binoculars safe from damage.


Celestron SkyMaster 25x70 BinocularsThe binoculars are heavy, bulky and difficult to hold. The hands begin to shake after a short period of time, making it difficult to get a good image.

A tripod is needed to make the viewing experience enjoyable. Some users have difficulty in obtaining a clear image with the focusing mechanism.

The product is very sensitive and the vision is not HD and some users reported that even after adjustment, images are too small and tend to be blurry.

Not recommended for watching celestial objects in motion unless used with a heavy tripod (which is expensive), because the lighter ones will not support the weight of these binoculars.


The design of the Celestron SkyMaster 25×70 binoculars make them an outstanding product for use in viewing celestial objects in the night time sky.

They are also useful for any type of long distance land or see spotting.

The majority of people who used this product were pleased with its performance and gave it high marks along with recommendations to others for purchase.

Some users found it difficult to use and were not pleased with the magnification or focusing abilities, and the weight was a negative factor as well.

Overall, the Celestron SkyMaster 25X70 binoculars provide high quality viewing of objects at long distances in a variety of lighting conditions.

Most users were pleased with the results that they obtained.

Celestron SkyMaster 25x70 Binoculars Review Binocs
Celestron SkyMaster 25x70 Binoculars Review
Clear and sharp images at a high level of magnification!!
Bird Watching
Outdoor Sports
Wildlife Observation
Marine Use
They are great for viewing celestial objects and events as well as use for spotting aircraft, objects on the sea, wildlife and other land uses.