Zhumell 25x100 Tachyon Astronomy Binoculars with Case, Black

I will also write my impression, for someone it may be useful! I will start with the fact that I have been interested in optics for many years, it is my hobby, I own a telescope and three binoculars, two of them are of high quality, 8x Nikon and 10x Vortex, so I have something to compare the quality of the picture and field of view with. But lately I wanted a stronger magnification, I thought for a long time and read reviews, I could not decide 20x80 or 25x70 Celestron, after I looked into it, I immediately crossed it out because of the small field of view. Then there was a choice between this Zhumell, Celestron SkyMaster and Oberwerk Explore, all three 20x80, but there is a difference in price, besides, since I do not live in the USA, delivery to my country with customs clearance costs me an additional $ 100. I decided to stop at Zhumell, because according to reviews, it is almost the same quality as Celestron, but it is cheaper and has fully coated lenses than Celestron. I saw a lot of reviews that you can get it with bad collimation, but it did not scare me, turning the screws is not a problem for me, I did it on binoculars. In the end, I received the long-awaited parcel from Amazon, for which I thank them! No damage! Now a review of the binoculars themselves). I am very pleased with them! This turned out to be what I hoped for. Firstly, the collimation is 100% accurate. The field of view is wide, like on my 8 and 10x. The image is sharp across the entire field of view, which is important! The sharpness itself is clear and excellent! I use the binoculars for terrestrial purposes. The image is bright, at night in the dark you can see details when your eyes can’t see anything. The image detail is much better than 10x. In the end, I am so pleased with the picture that I think how much better this image can Oberwerk give for $ 270 if the Zhumell image is completely satisfactory, why overpay and for what. I have a tripod, but I hold the Zhumell (2 kg) in my hands without problems for an overview view without lingering on the object for more than 20-30 seconds. There is no big shake! For a 2-3 minute review, you can do without a tripod. But if you need to observe the object longer, then a tripod will help. This is my honest review. I am very pleased with my choice and thank you Zhumell for an inexpensive but high-quality product!!

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.

These arrived unusable due to double images. Unfortunately I didn't test them prior to the return window closing. I was going to toss them out when looked up how to fix columation on youtube. It isn't really that difficult to merge the images with a good tripod and a nice distant object to focus on. You will have to remove one side of the rubber grip to get to the two screws. After fixing the issue these deliver a nice image. Especially for the price. That being said, understand that all binoculars of this type are bulky and fairly heavy. Hand holding a 20X set of binoculars is not very satisfying. If you really want to hand hold binoculars with some magnification, to get pleasing results you are going to want stabilized binoculars. However you are looking at 10x the price at least.

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.

Beautiful clear visuals. I can't imagine what the more expensive alternatives can offer at near double or more of the cost. There have been some reviews about misalignment and I was concerned when ordering but out of the box the visuals are great, very clear. They're big so hard to keep steady when viewing planets in the night sky, however for terrestrial viewing they're outstanding.

Finalmente qualcosa di buono ad un prezzo accettabile! Mi ricollego alla recensione precedente e completa del buon Irakli Talakvaze che ha centrato in pieno la situazione. Vorrei solo aggiungere che il bino, pesante un paio di kg, arriva corredato da un'ottima borsa in (simil)pelle nera ed un para luce sintetico. I copri lenti sono decisamente molto seri, non come quelli sui binocoli economici, fatti per essere persi. Il paragone era fra questo ed un Gorsky russo acquistato pochi giorni prima, in realtà 25 x 70 (leggere recensione odierna). Ebbene, lo Zhumell vince su tutta la linea. L'ingrandimento del Gorsky è tale e quale a quello dello Zhumell, ma quest'ultimo dispone di un diametro da 80 mm e lenti prisma Abbe-Koenig (e si vedono i risultati). Uno dice "come fai a portare in giro due kg ed a sostenerli durante l'osservazione senza cavalletto?" Rispondo...Non c'è problema, si possono tenere sull'obbiettivo per un paio di minuti, poi ci si riposa la mano. La visione è chiara, nitida...un vero piacere osservare le fioriture di primavera ed i cerbiatti che pascolano nel bosco. Anche le montagne in lontananza risultano piuttosto nitide, ma ovviamente qui subentrano dei limiti che riguardano le distanze km... Fino a 6 o 7 km va tutto bene, poi se si vuole ottenere qualcosa di più potente per osservazioni oltre i 10 km, converrebbe rivolgersi ad ottiche di più alto lignaggio, oppure a qualcosa tipo Maksutov Cassegrain, con tutti i limiti del caso, visto che quest'ultimo necessita davvero di un cavalletto, dato il peso e non è facilmente trasportabile. Se volete un binocolo decente ad un prezzo interessante, questo Zhumell è ciò che fa per voi. Non l'avrei mai trovato senza la segnalazioni per email di Amazon. Per una volta la pubblicità mi ha fatto davvero piacere. Grazie!

La calidad del producto es muy buena, no he tenido problemas de colimación, o cualquier otra cosa tras dos años de haberlo comprado. el que incluya estuche rígido para guardarlo es un gran extra.

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!

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.