Celestron 20x80 SkyMaster Binoculars

  • 20x magnification Porro prism binocular.
  • Giant 80 mm objective lens offers maximum image brightness in low-light and long-range conditions.
  • Suitable for terrestrial or astronomical viewing.
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  • Regular price $205.95
  • $155.15
  • You save: $50.80 (24%)

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Celestron 20x80 SkyMaster Binoculars

Celestron's 20x80 SkyMaster Binoculars is a phenomenal value for high-performance binoculars, ideal for astronomical viewing or for terrestrial (land) use, especially over long distances. Each Celestron SkyMaster model features high-quality BaK-4 prisms and multi-coated optics for enhanced contrast. Celestron has designed and engineered the larger SkyMaster models to meet the special demands of extended astronomical or terrestrial viewing sessions. 

For maximum stability and secure optical alignment, the 80 mm and 100 mm Celestron SkyMaster models feature enhanced structural reinforcement to the main binocular body. As an additional convenience, the 80 mm and 100 mm SkyMaster models also include an integral super rigid photo tripod adapter. The Celestron SkyMaster Series binoculars are built to provide years of magnificent views of the world around you and the heavens above.

Celestron 20x80 SkyMaster Binoculars Features

  • Ultra-sharp focus across the field of view.
  • Multi-Coated optics for sharp, clear views.
  • Protective rubber covering for ultra-firm grip.
  • Large center-focus knob for easy focusing.
  • Integrated tripod adapter rod for ultra-stable tripod mounting.
  • Long eye relief ideal for eyeglass wearers.
  • Soft carrying case included for travel and safe storage.
  • No-Fault Warranty provides best protection and product support on the market.

Celestron Product Number: 71018


Aperture80 mm (3.15")
Free ShippingYes
ModelCelestron SkyMaster
Prism TypePorro Prism
WarrantyCelestron Lifetime No Fault Warranty
WaterproofingWater Resistant
Customer Reviews
4.2 Based on 6 Reviews
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United Kingdom United Kingdom
Perfect beginners' astronomy binoculars

I love these binoculars and wrote a review of them on the Skies & Scopes website here: https://skiesandscopes.com/celestron-skymaster-20x80-binoculars-review/

Kim S.
United States United States
Binocular Review

These binoculars are extremely heavy. It’s almost impossible to look through them for more than a minute and actually be still - your arm starts to shake. We have a tripod and that helps but the tripod limits your flexibility of easy movements.

United States
big binoculars

For the money these are a great buy.

Customer review

I have to say before I got the box open I had the same feeling as when I got my 16 Lightbridge that feeling was kind of like... these are a little bit bigger than I thought it would be. I paid a little extra for shipping so they would be here today this paid off in more than one way. #1 clouds are rolling in as I type this, #2 our club had our weekly star party at a local park. So I took these and left the telescopes at home. Binocular First Light! I set the 20x80s up on my very best tripod a & I took a stool along. I arrived at the park just after sunset and just before moon set. Because the moon was about to disappear behind trees first light was on the thin lined moon. I have to say I was impressed with the view. These binoculars really rock the moon! The view was excellent and sharp. Next, I set my sights on Jupiter. I could see the 4 moons and Jupiter. I was a little disappointed in the amount of color distortion on Jupiter itself...I got some red on the side of it. I happened to set up next to another astronomer, who using the Skymaster 11x70's I called him over to take a look. We compared we agreed the image in my 20x80 was clearer than the 11x70's. Needless to say the image wasn't that bad and it acceptable in my book as I didn't buy these to use for planetary work. Then I moved to M31. This was a really nice sight even in the light pollution of San Antonio, TX. I could clearly make out the galaxy & I was totally impressed with the image I got. It was 142% better than my 10x50 Celestron Close Up Binoculars. I sat there a long time just staring. I searched around Cassiopeia for a while and then I landed at NGC457. Nice. Then I moved on to the double cluster and that was really nice. At this point in the night I started to really think my purchase had paid off. Soon the Pleiades (M45 were high enough to see with the binoculars. These 20x binoculars provided and eye filling view of these 7 sisters. I thought I'd better get a wider set of binoculars like some 11x80's but I think that 20x is nice. I'm still close enough to see things in detail but still wide enough to take in a lot of the sky.I chatted with folks for a while. People came and took a look though the binoculars and they were all impressed. Neptune was above Jupiter and just above 3 stars in a line. I decided to star-hop with the 20x80. I started out on Jupiter moved to Nashira ***** eye visible star above and to the left (south of Jupiter, then to Deneb Algedi which was above and to the left (South of Nashira. From Deneb Algedi I simply panned to the West to find a line of 3 starts. (I really like lines of stars as the are easy to confirm your in the right place!. Above this line I could see a blueish little Star that became more visible with adverted vision as there was a lot of light pollution. That was Neptune! The line of stars I saw were (45 Cap, 44 Cap, and 44 Cap. Now Orion's Nebula was at a point in the sky where I could get a look, but some thin clouds started to roll in. I set up the tripod and binoculars and took a quick peak before heading in to write this. I was treated with the nebulosity in the Nebula which was a nice sight despite the thin rolling clouds. After a quick look at the red star Betelgeuse I headed in and the clouds did the same! These binoculars will round of my observing equipment quite nicely. I have a set of 10x50s, 12x50s and now 20x80s. I have various telescope ranging from a 60mm refractor to a 16 dobsonian. I feel that these would make a great addition to a well rounded astronomer or a beginner, they are absolutely great.

Great optics

I bought these to use on a Couch Potato Telescope chair. I had previously used a set of Orion Scenix 10x50 on the chair and was pleased. This binocular beats the pants off that smaller pair. The weight is reasonable for the mounting and is easily supported by the CPT system. I found the image to be stable and easily adjusted. I like the fact that the focus adjustment is stiff. That allows me to set it for my eyes and optical infinity. My binocular does not wander in focus once I set it. I wear glasses, and the field of view is quite impressive. One of the objects I looked at my first night out in dark sky was M31. I have used a number of different telescopes in viewing M31, but I have never appreciated the huge extent of M31 like I did when I first looked through the binocular at this galaxy. It was huge! It extended several degrees from the center of the field in both directions. The two neighboring galaxies, M32 and 110 were also quite obvious. I call my new binocular The Eyes of Texas and plan to run the Astronomical League deep sky binocular list a second time with this bigger binocular. I can not wait to get to the Texas Star Party and run John Wagoner's Binocular List from ****! It should be a lot of fun.

Quality Control?

I have purchased Celestron products since 2001, and have generally been extremely pleased. Particularly with the early NexStar 5 (2001 and the 9x63 binoculars (2001. It is with some reluctance that I write this review about the SkyMaster 20x80 binoculars. I use my binoculars with a product called Sky Window, made by Trico Machine in Ohio. When I take my binoculars out for the evening, I expect to make a night of it and I do not want back and neck problems the next day - or while viewing. With my Legacy 7x50’s and my Celestron 9x63’s viewing is a perfectly pleasant experience from start to finish. Minor adjustments in focusing, of course, occur but nothing is distracting. The Celestron 20x80’s, however, offer an altogether different experience. Focusing is extremely stiff, as is the diopter setting and both are difficult to achieve. Further it wanders very frequently, and requires readjustment. The focusing is so stiff that it often alters the ‘horizontal’ setting of the binoculars relative to the Sky Window itself. After an hour of observing, I realized I was spending 80% of my time being frustrated. Part of the problem was the difference in focus clarity at the center versus the outer portions of the field of view. Crispness across the FOV is not at all acceptable. I have returned these binoculars, and purchased a pair of Oberwerks which are far superior. If you use Sky Window, think twice about the 20x80’s.