Zhumell20x80 Giant Astronomical Binoculars, Black

OK so not easy to grab and run out and view. I doubt seriously if anyone is steady enough to hold these still in their hands for astronomy type viewing. I have em on an Orion Telescopes Monster parallelogram and they work pretty well. Still I get better views when I get on target and take my hands away. No vibration at all that way.The moon is awesome. Looking tonight with maybe a quarter moon we could easily see crater and mountain details and easily see the mares in the shadow.M42 is realy nice. I haven't seen this much with aging eyes in a while.4 moons of Jupiter were really clear. My minds eye thought I could see some color on the disk but I was never super clear about that.Pleiades were absolutely fantastic. They take up almost exactly the whole field of view through these and are amazing to look at. You get a depth of field through these that you would never get with one eye on a telescope. Everythings is nice and bluish.I've got or had 2.1x41s, 2x54s, 10x502, 8x60 & 20x80s binocs. Telescopes that range from the silly 35mm up to 13". I make a lot of my own stuff and I'm working on a set of DIY 100mm f4.5 binoculars that I started right before my wife bought me these. I may never finish those because these are so good I can't imagine coming close.Cons:1) They are expensive but not so much compared to other similar astro binocs. I doubt I would have bought em myself cause I would never have thought they were so much better than my 20x80s. They are.2) They are heavy. You won't freehand em and do well so plan on building or investing in a BIG mount.3) My wife thought she was getting me a birthday present but they were basically useless until we got the mount. It was $500 and she bought me that for our 31st anniversary. I was planning to build one but her's is better. Just expensive.4) The mount and binoculars are almost too heavy to run out and look at something quick. I have a bad back and I often want to go out to view but I can't justify the pain caused by totin' that mount so I have to wait for one of my boys to take em out. I want to make a permanent safe place for them on my patio so I can just go out and view. Problems to overcome...If you are the kind of person that only wants the best then these may not be for you. If you want some very good binoculars for the night sky then I think you will be happy with these. If it weren't for the costly and necessary mount I would recommend these for a first scope. You will definitely see more than I ever did with my first 5 scopes.

The Binocular is well built and robust. It was in good collimation. The views through the large 100mm Aperture is amazing. I also own 50mm and a 35mm binoculars, so the difference in viewing is very noticeable.Be aware that you cannot hold this in your hand. Need a heavy duty tripod capable of holding 15lbs to be reasonably stable. Also look for a tripod that can reach at least 72” height for comfortably viewing stars. I purchased a Neweer 77” heavy duty tripod to mount this binocular.I replaced the Tripod’s standard 1/4”-20 0.25” screw with one that was 1.5” long, as the standard short screw has only 3 or 4 threads, so insufficient to attach this heavy binocular. The mounting post on the Binocular is threaded to accommodate a long mount screw so use it to its full depth.Overall very pleased with this Binocular. It is now permanently in my car with the tripod, so that i can grab any star gazing opportunity i get when i am travelling.

The collimation went out all of sudden, and you see double of everything, and that ain’t a good thing! It was not dropped or shaken to my knowledge. There’s no way to fix it and the company offers no such service. User manual is pretty useless beyond basic kindergarten-level information.

I purchased these binoculars for my wife to view the night sky and we are certainly not disappointed. As a beginner in astronomy, these binoculars gave us an inspiring view of the moon, the orion nebula, star clusters, Andromeda galaxy, and several planets. I found the quality of the glass as sharp and detailed, producing a view far better than what the naked eye can see. They’re heavy, so make sure you have a sturdy tripod ready to go. Although these are at a great price, they’re certainly not a toy. This is a professional quality product at a fantastic price.

Seemed to be well made from a materials standpoint; however, the chromatic aberration was terrible - my expectations weren't unreasonably high given the price point, but at the end of the day the purple fringing around even planetary viewing was not acceptable. I viewed Jupiter, Saturn and Mars with these and even at those distances and this magnification there was a lot of fringing - I tried some high quality filters, but even they couldn't overcome the issue. View of Jupiter's moons was good as their magnitude was low enough that they did not fringe, and off-center viewing did allow me to discern light banding shadows on the planet. Stars were fairly sharp, so it wasn't a collimation issue, just seems like the lens quality is not where it needs to be. I really wanted to like and keep these, but at the end of the day I couldn't justify it.

Tienen una ligera aberración cromática, pero no afecta la calidad de observación. De hecho dan una increíble vista de los objetos en 3D, resaltando la espacialidad entre distancias. Sin embargo, es obligatorio comprar aparte un trípode con la capacidad de aguantar más de 3 kilos, pues los binoculares son muy pesados y es imposible (además de incómodo) observar solo con las manos. Incluso con trípode es difícil lograr estabilidad en las observaciones debido a los aumentos y la vibración. Rastrear y enfocar objetos sobretodo en cielo nocturno se vuelve muy complicado y lleva su tiempo. Aún así yo logré ver las lunas de Júpiter claramente, la forma de los anillos en Saturno (e incluso hasta su luna Titán como un puntito pequeño). La galaxia de andrómeda como un manchón parecido a una nube y algunas estrellas binarias. Todo esto a pesar de malas condiciones climáticas y mucha contaminación lumínica. Desafortunadamente no dispongo del adaptador para tomar fotos con el celular, ese debe comprarse aparte si desean capturar lo que ven con su teléfono, pues es muy difícil hacerlo sin uno. MI CONCLUSIÓN: Si quieren comprar este artículo para astronomía principalmente, yo recomendaría o bien binoculares más pequeños, portables y de fácil manejo con las manos (como unos 10x50). O mejor aún, con el mismo presupuesto de esta compra (más el trípode obligatorio) hasta alcanzan a comprarse un telescopio refractor decente (como un 70x700) ya con su montura incluída, para ver más detalle en objetos celestes, que solo se logran con más de 100 aumentos y no solo con 20. De cualquier forma, la elección es suya, pero quise dejar mi experiencia con los binoculares para que ayude a alguien más a hacer una buena inversión de la cual no se arrepientan después.

The first things you’ll notice are the size and weight: each a huge surprise in more ways than one. So it might be wise to review the product descriptions first.I know next to nothing about these instruments but would be surprised if they’re meant for birdwatching in the backyard: the clue, I think, is in the main description itself. Nor have I had the opportunity to point them upwards yet. But if my earthly experience is any guide, you’ll be pleasantly surprised: they bring distant objects (like moving cars or air planes – so I have pointed them upwards, just not yet at the stars) right into your face.I can’t see how you won’t need a tripod, though, for however steady your hands, the image will dart everywhere and out of view even when you literally hold your breath. Again, the clue is arguably in the attached tripod-adapter (as in the photo itself – no, it’s not an actual tripod).I’m not yet sure whether, and if so, how it can be used with a camera (whether old-school or cell-phone ones) though. Nor have I seen any reference to this in the other reviews. And the user guide is silent on the matter, if memory serves. So, something to bear in mind in any event.

I have only had these a short time, but on the only clear night we have had I used them for the moon, it was great, clarity fine, a little chromatic aberration depending on how I placed my eyes to the bins. I returned some celestron for poor chromatic aberration, and some ioptrons for only a third of the viewing being in focus. These were the best of the three makes, and cheapest. I could see Jupiter's moons, as I had hoped, but not Saturn's rings. I took some good phone pics through them using a rig to secure to left eyepiece.

My Zhumell 20x80 binoculars came collimated and in good condition. They are very light and sturdy. The optical quality is good with minimal chromatic aboration for the price range, which is only an issue for bright stars anyway and not for nebulas, comets etc. All in all I highly recommend them.

I had been trying to find the highest magnification scopes after I sold my 8 inch Dobsonian telescope, which had great light collection but was giving me vertically and laterally inverted images (a result of the design) so I could not compare what I saw with published clusters, and there was no comfortable way to use a twin lens (which made the image far dimmer). I had tried a 25x100 pair of binos but the problem was the independent focussing, which was difficult to master. Therefore I took a chance on this 20x80 Zhumell, not least because of the special offer. I was so, so lucky to have it come perfectly collimated, and I was prepared to send it for collimation at my own cost, if it was not. The separate, extra thick, soft padding that came with the soft bag, and double box packing went a long way to protect the binos and so the collimation was not affected. This is very important, because I had returned many pairs of binos of various brands, as the collimation was off, or there was serious eye strain (I have a great pair of Bushnell Legacy WP 10 x 50 Binoculars as a reference). This 20x80 pair is very sharp if I can get some support when viewing in the daytime, enabling me to read labels on boxes or cars from 14 storeys. I think the image is clear across the field of view. Given that the precision is quite stunning, I would recommend this Zhumell brand highly, and furthermore, if it is not collimated upon arrival, the buyer may ask for an exchange. At exactly 2kg, it is possible to hold this pair for a minute, and when your arms are tired, you can take a break by hanging it with the included neck strap. I am waiting for my quick release tripod adaptor so I can fix it for stargazing. At this magnification, the sword of Orion fits exactly into the field of view. Although most 20x80 bins look the same from the outside, making me worry that they are all the same and just rebranded, this design might be unique because to focus, you have to rotate the knob the other way (clockwise for nearer objects). I feel it was properly engineered, and never mind that it was made in China (as more and more scopes and lenses are). I call it my stereo telescope now, because I went down to as low as 21x for my telescope then, and this is far more portable. Superb value and worth more than the asking price!