Potentes binoculares de nivel profesional, requieren sí o sí un tripie de excelente calidad para usarlos, además mucha paciencia y muchisimo cuidado, sobre todo al transportarlos y montarlos. Se pueden apreciar detalles en las montañas a kilómetros!!! Muy impresionante.

Excelente calidad y precio

Pourtant, c’est une bonne marque, mais j’ai été vraiment déçu par cette version-là, j’ai donc décidé de mettre même pas une étoile car ça ne remplit pas ça fonction trop de défauts

After so much hype after watching videos and reading about these I was expecting to open them up, set up the eye pieces and enjoying a large zoomed in view. Non of that happened. First thing I noticed was how badly the eye pieces are designed, terribly uncomfortable and hard for multiple people who tested them to get their eyes in position. Then I was shocked how tiny the view was. Our cheap £20 10x24 binoculars have a larger view. Also we all tried to adjust as much as possible yet all we got was either double vision and or black circles all over the place. Sometimes it's like only one side worked. Poor design, extremely uncomfortable to wear, tiny view through them and black objects constantly in view.Sending back as no confidence with the brand compared to non branded ones we already have

Excelente producto, calidad de los materiales,supero mis expectativas.

Son realmente enormes y pesados. Es necesario un tripie para poder enfocar de manera correcta. El alcance de día es muy bueno y sirven bien Pará enfocar objetos celestes de noche. La calidad es muy buena tanto en la nítidez de imagen como en la construcción misma de los prismáticos..

El precio fue espectacular, funcionan muy bien, fue un regalo para mi esposo. Le gustaron mucho y tienen buena definición.

El producto llegó rapidísimo, mucho antes de la fecha de entrega garantizada. Respecto a los binoculares, se sienten muy bien construidos y resistentes. Al aumentar el nivel de zoom se reduce el ángulo de visión (obviamente) pero la imagen casi no pierde luminosidad y la definición sigue siendo extraordinaria aún con el máximo aumento (40x). No son tan pesados pero si es casi imprescindible un trípode robusto debido a que no son ligeros, pues así podremos disfrutar aún más las sesiones de observación. ¡Un producto altamente recomendable!

Es un producto excelente pero llegó dañando, lo pude devolver y me regresaron el dinero.

I have been wanting a pair like this for a long time and am very pleased with the quality of it! They are slightly heavy and I may look into buying a tripod for them. Once adjusted to your eyes you can really see far away! Looking at the moon full is amazing! There is a nice carry bag and covers for the lens. I saved over $50 buying them off Amazon than from the manufacturers web site. Love them!

Envío muy eficiente, Llegaron un día antes de lo programado a buena hora del dia y muy bien protegidos... Pasando con los binos!: Son Muy Grandes! Los imaginé más pequeños pero son grandes y pesados,indispensable un trípode. Se puede ver a detalle varias estrellas y planetas: La luna y sus cráteres, la constelación de orión, pléyades, planetas como júpiter con sus lunas formadas,Venus, Marte... Galaxias como andrómeda y muchas más se pueden ver sin problemas... he visto algunos paisajes lejanos y aun a 16 km se pueden ver las siluetas de los árboles sin distorsión.Los recomendaria a alguien que se inicia en astronomía o para ver paisajes como plantas y aves u objetos distantes.Son fáciles de usar, sin necesidad de colimar los empeze a usar enseguida que los saque de su caja, son básicos pero son muy buenos me ha gustado el aumento y los ajustes del Zoom.. La imagen es muy es muy estable pero todo depende de un buen trípode.

Many years ago I bought my wife a Celestron C-90 spotting scope (equivalent to a straight 1000mm, f11 lens) with a aluminum Celestron case and additional eye pieces as one of her Christmas gifts (it was a lot more back then, then it is now). Since it has held up so well, and being that the Celestron brand has been around so long, I thought I would give these binoculars a try. I purchased them for $108.53 flat via Amazon Prime, versus the full retail price (MSRP) of $169.95. The general 'street price' is around $125 - $130.To start with, if you don't know optics, this set has a extremely small field of view (FoV), so be warned that they must be used with a tripod or other fix placement device. Being within the "Ultra-narrow FoV" range (denoted as 1 to 3 degrees), at 1.25 degrees this set will only have a FoV of 65.45 feet in diameter at 1,000 yards (1 degree of Arc equals 52.35987755 feet at 1,000 yards). Because the FoV is so small, and the binoculars are so long, the points of viewing interest will need to be fairly stationary or you may find it rather difficult to track. Additionally, you should also understand that these are not actually astronomical binoculars (although they could be used for that, with limited results, like examining the Moon) as true astronomical binoculars (sometimes called "binocular telescopes") will never have 'zoom', nor a central focus ring, and the 71020 in common use is generally restricted to terrestrial viewing in broad daylight. Note: If you actually want a real pair of astronomical binoculars, you would start at 25x100 (Celestron makes this) on up through 25x150 (Fujinon used to make this). The light gathering at extreme magnification will always be dampened by physics (which you can't get around, unless you make the objective lenses even bigger, and then the price will become 'astronomical'), and if you were to add 'zoom' to the mix, that would only make it worse.The objective diameter is the width in millimeters of the first lens (of which there are 2 in this case, because they are binoculars), and determines the light-gathering ability of the optical instrument by how wide they are. In this case it is 80mm, so the light gather properties of the 71020 are very good in that regard. Most modern optical instruments also use anti-reflective coatings on the lenses and interior barrels to reduce light scatter and enhance the photon quantity delivery to the eye, as is the case here. Additionally, any 'multi-coat" process is critical in its application (too thin, too thick, not evenly applied, etc) to the end result image one will see. It is in this arena that optics will tend to pass or fail when it comes to the quality of image for consumers, but you won't be able to specifically place the blame on it without lab equipment. Finally, some of the benefits of these large lenses are undone in this case due to the fact that this is a 'zoom' binocular set (which would apply to all zoom binoculars).The prism's used (to shorten the length of the instrument and correct the orientation of the image) are the industry standard "BaK-4". Genuine "BaK4" (which designates "BaritleichKron ["Barium Crown" in English] process 4, glass") prisms are better than "BAK-4", as is the cheaper, Chinese way of manufacture. The difference in slipping from what it is attempting to copy may show up as a slight 'milkiness' in the image (because it is not actually 'barium crown glass" but rather "phosphate crown glass"). When you start paying more than $400 for binoculars, then you will have a right to complain about the hucksterism, but for this level/cost, it is acceptable IF it is even actually "BAK-4". The 71020 has "BaK-4" (small "a") printed on it, but at the same time I believe the 71020 is manufactured in China, ...so, who knows? I just thought everyone should be aware.The EP (Exit Pupil) is extremely small at 3.2mm. Any optics having a EP under 4mm should effectively be used in only bright daylight conditions. 4 to 6 is average, 6 to 7 is superior, and 7 and beyond is super bright. With the 71020 having a RBI (Relative Brightness Index) of 10.24 it is rather dim (a RBI of 25 is standard). But, both of these factors are to be expected to a degree in this configuration of binoculars, especially at such a low price point.The spine (or "spar") is solid, and along with its large tripod attachment knob, will give it good stability against shake and lend confidence in grasping the pair while moving it.Surprisingly, the objective lens caps actually stay in place until removed, which is a good thing. Now if they would just repeat that on the protective eye-piece cap.The following are the actual dimensions of the 25-125 x 80 Celestron SkyMaster binoculars, Model 71020, and are given for those who might wish to buy or construct a hard storage container for this binocular instrument. The soft-sided, velcro-closing, nylon bag with nylon carrying strap that comes with it just 'seems wrong' when it comes to any type of actual protection, other than dust, so -The Celestron product box it comes in is 16 1/8" tall by 10 7/8" wide by 7" deep, which uses a 2-piece closed-foam insert to protect the binoculars.This product box also comes inside a Celestron shipping box that is 17 1/2" tall by 11 7/8" wide by 7 3/4" deep.The exact manner in which these binoculars are stowed will determine the internal dimensions required in a hard case.As this set has a integral tripod mounting system (which can twist, or have its securing knob removed), along with the fact that the binoculars can 'fold' slightly for pupilary distance adjustment, the dimensions are actually variable for storage.The EXACT dimensions are -Height A: 13.500 inches (13 1/2" or 342.900 mm) with no caps in place, and eye relief down.Height B: 13.750 inches (13 3/4" or 349.250 mm) with all caps in place.Width A: 8.5625 inches (8 9/16" or 217.487 mm) when 'folded' (dual eye protection cap does not fit properly when binoculars are 'folded')Width B: 9.125 inches (9 1/8" or 231.775 mm) when 'unfolded'.Depth A: 4.000 inches (4" or 101.600 mm) when 'folded' and the tripod retention knob is removed.Depth B: 4.4375 inches (4 7/16" or 112.7125 mm) when 'unfolded' and the tripod retention knob is removed.Depth C: 4.750 inches (4 3/4" or 120.650 mm) when 'unfolded' and the tripod retention knob is left in place.So according to my EXACT measurements -The very smallest interior dimensions of a hard case would be by using Height A, Width A, and Depth A, which amounts to:13.5 inches by 8.5625 inches by 4 inches (462.375 cubic inches) [but you can not use the dual eye protection cap].The very largest interior dimensions of a hard case would be by using Height B, Width B, and Depth C, which amounts to:13.75 inches by 9.125 inches by 4.75 inches (595.976562 cubic inches)...So it all depends on how you configure the binoculars for storage that will determine what size hard case to acquire. Personally, I'd go with the larger case, so the protection caps can be used.If you concur, you might check into the Pelican "1485 Air" case w/ foam (about $161), or the Pelican "1450 Protector" case w/ foam (about $94), but these can be expensive.You might just take the 2 very same closed-cell foam inserts that come in the box and use them inside a hinged (2" down from the most expansive face) wood or Starboard box you create for yourself with the interior dimensions of 15.5" by 10.5" by 6.5". This would obviously require time and effort.All-in-all, the low price versus quality, I regard these as a very good buy. I give it 94 points out of 100, and would recommend it for purchase, with the full understanding of what you are buying and how they can actually be used (resulting in genuine/realistic expectations). If you have boat loads of money, by all means, buy a $6,000+ professional set of top-end astronomical binoculars ...and develop ulcers over protecting them in storage, transit, use, and against theft. The 71020 is not that pair. This pair you can have fun with ...as long as you remember to bring the tripod.

Received it just yesterday.it is imported fr USA. But ammazon has handed it over to me well before the time which I was expecting. Built quality nice, gives sharp image on 25X magnification . but I feel zoom upto 40X is ok, above that the image area becomes small and unstable. Its a little heavy. But we cant expect a binocular less heavy which is fitted with 80 mm glass lens .A tripod is must or u can rest ur elbow on a railing of ur balcony for better stabilty. Not yet look to the night sky. feeling proud by owning it.