Celestron Cometron 7×50 binoculars 2022 review: cheap and…?

The Cometron product line by Celestron binoculars seem to appear in every top list for cheap astronomy binoculars. For Celestron binoculars, let’s be very straightforward. This is the brand name appearing in most people’s mind for astronomy binoculars. Therefore, this article is to give full insights of this Celestron Cometron 7×50 binoculars, to see whether it is cheap and performs beyond your expectation or not.

Celestron Cometron 7×50 binoculars technical aspects

Celestron Cometron 7x50 binoculars
Celestron Cometron 7×50 binoculars


Technical aspects Celestron Cometron 7×50 binoculars
Magnification  7x
Objective lens diameter 50 mm
Focus Central focus
Field of view 357 feet
Exit pupil  7.1 mm
Eye relief  13 mm
Close focus distance 26.2 feet
Prism glass type BK7
Prism coating Multicoated 
Twilight factor 18.7
Weight  27.3 oz
Dimension  6.6 x 7.8 x 2.5 (inch)
Chassis  Aluminum housing 
Tripod adaptable Yes 
Water resistant Yes
Nitrogen filled No

These are technical data collected directly from the Celestron homepage website


Celestron Cometron 7×50 binoculars – astronomy requirements

Optics quality  

It shows no surprise that such cheap products like Celestron Cometron would include a BK7 prism type (usually more expensive ones would have BK4 glass). However, the fact that Celestron Cometron 7×50 prism coat is multicoated is amazing. It presents a clear view, reducing quite a lot of glare and reflection. Brightness is also an advantage of this Celestron Cometron. The multi coated prism delivers a high quantity of brightness and ensures a high quality of light. 

Collimation seems not to be a problem with this Celestron Cometron 7×50. It takes just a quick effort to have correct focus with no miscollimation. Furthermore, the binoculars view goes very close to the edge, showing a large area of the binoculars view. 

Last but not least, porro prism allows these 7×50 binoculars to have high quality of contrast. Those kinds of good things remain nearly the same in dark knight thanks to the large exit pupil.

However, we also want to mention that in too low-performance darkness (meaning the sky is so dark or affected by unexpected factors), the optics quality may not reach its maximum performance.

Celestron Cometron 7x50 binoculars
Celestron Cometron 7×50 binoculars

Objects observable

For such affordable binoculars like this Cometron of Celestron binoculars, it is expected to complete the most basic requirement – observing the galaxies. And it does the work quite well with a bright clear view. 

Moreover, it is also pleased to watch comet and Moon craters with this 7×50 binoculars. Especially, the experience of observing the tail of a comet is quite satisfying.

For other stargazing, this Celestron binoculars is wonderful when you watch open cluster.

Tripod adaptable 

Usually other astronomy binoculars would need a tripod because of its heaviness. However, for this Cometron, that is not the problem. As for this Celestron Cometron binoculars, the image stability is not so decent, that’s why we highly recommend a tripod for better experience. 

Anyway, tripod is adaptable for this Celestron 7×50, we have no problem with setting up the tripod, using it or hearing any other complaints about the tripod. Apparently, it is not the best tripod (of course), but the performance is more than OK. 


It is not the most efficient magnification level for astronomy, but if you’re looking for binoculars for astronomy beginners, the performance is there to enjoy.

Celestron Cometron 7×50 binoculars – other requirements


It is completely obvious that the size is too portable. In fact, this could be suitable for kids as well. As for 7×50 binoculars for astronomy, this Celestron 7×50 is quite lightweight. In comparison with the Nikon Aculon 7×50 A211 (31.9 oz), the Celestron Cometron binoculars are lighter. Nikon is always considered a standard for cheap compact binoculars. Therefore, being more lightweight than the Nikon Aculon implies that this Celestron binoculars 7×50 is among the lightest in 7×50 binoculars for astronomy. 

As stated by Celestron, this Cometron is water resistant only, not fully waterproof. This should be carefully noted down before use. One surprising feature is that they use aluminium for the chassis of this binoculars 7×50, which is considered to be quite expensive material. The rubberized cover of this Celestron Cometron 7×50 binoculars is quite standard, nothing to complain about, though not the best rubber-armored you could find.  The durable and comfortable grip should be fine. 

Binoculars eye relief

The eye relief of this Celestron Cometron 7×50 binoculars is 13 mm, which is actually not a decent figure. Therefore, eyeglasses wearers need to take serious consideration before deciding to buy this or not. 


The focus knob of this Celestron is smooth enough to comfortably switch around. As our experience, the image focused is sharp enough to give you absolute no complaints.

Field of view

As for 7x binoculars, the Celestron 7×50 Cometron binoculars have a decent field of view. This shall bring more than fine experience for both astronomy and terrestrial use.

Celestron Cometron 7x50 binoculars terrestrial
Celestron Cometron 7×50 binoculars terrestrial


Besides being a consideration in every top list for cheap astronomy binoculars, the Celestron 7×50 cometron binoculars are also well-known for being versatile. Let’s see how terrestrial experience works with this binoculars 7×50:

  • Nature observation/ birdwatching: being a bino of 7×50, this Celestron Cometron delivers a quite good magnification level, while the field of view is also enjoyable enough. Combining with the high quality of optics, nature observation and birdwatching from this 7×50 binoculars would satisfy you. One advantage comparing to other astronomy is the lightweightness of this Cometron would allow you to enjoy holding up the binoculars in a high distance for a while without feeling uncomfortable. However, the disadvantage is the close focus distance of Celestron 7×50 Cometron binocular would annoy you if you tend to watch insects. To our experience: 3.0/5 should be the appropriate rating.
  • Hunting: Just like birdwatching, the field of view and optics quality of Celestron 7×50 Cometron binocular would bring you pleasure. Moreover, one benefit from versatile astronomy binoculars like this Cometron is the porro prism. Porro prism usually shows rich contrast images, which is a prefer in hunting. 3.0/5 should be the appropriate rating.
  • Sports spectation: Being compact means you can enjoy watching sports in a crowded place without much annoyance. Combining field of view, optics, the Celestron 7×50 Cometron should be fine with sports speciation. 3.0/5 is also the personal rating for this category. 

The verdict

Celestron Cometron 7x50 binoculars
Celestron Cometron 7×50 binoculars

In general, this is one of the best options for binoculars of astronomy beginners. The Celestron Cometron 7×50 binoculars fit your casual watching for open clusters, galaxies, Moon craters. The only disadvantage (of other disadvantages) that matter may be the binoculars eye relief. So start slow, start with a cheap option of $50 if you’re beginners or you want to buy for your child, because it will go beyond your expectation.


Got a serious requirement for astronomy binoculars or seeking for bino for professional purposes? We highly recommend you to find other options.