Each SkyMaster model features high quality BaK-4 prisms and multi-coated optics for enhanced contrast. https://www.celestron.com/products/skymaster-25x70mm-porro-binoculars, //cdn.shopify.com/s/files/1/1935/4371/products/71008_skymaster_25x70_front.jpg?v=1534285949, //cdn.shopify.com/s/files/1/1935/4371/products/71008_skymaster_25x70_front_medium.jpg?v=1534285949, NexYZ 3-Axis Universal Smartphone Adapter, Hummingbird Fast Action Pan Tilt Head Tripod, Not compatible with #93648 Off-Axis Guider, not compatible with #93519 2" Mirror Diagonal (discontinued), Currently not compatible due to mechanical interferences, Large 70 mm objective lens offers maximum image brightness in low-light and long-range conditions, Ultra sharp focus across the field of view, Multi-Coated optics for sharp, clear views, Suitable for terrestrial or astronomical viewing, Protective rubber covering for ultra-firm grip, Large center focus knob for easy focusing, Long eye relief ideal for eyeglass wearers, Carrying case included for travel and safe storage, Limited Lifetime Warranty provides best protection and product support on the market. On these this inter-pupillary distance can be adjusted from a maximum of 7.2cm, right down to 5.6cm, which is nice and close and matches some of the best full sized bins out there, which means that these should be ideal for those whose eyes are fairly close set. SkyMaster 18-40x80mm Zoom Porro Binoculars, We process your personal data as stated in our. Genuine & Honest Reviews
But what you have to remember is that these will be heavier, bigger and more expensive. This innovative software solves the time-consuming problem of trying to pinpoint the North Celestial Pole. This would have been nice, especially if you often use them outdoors at night, where it can be a bit of a pain to search around in the dark looking for the covers. Now, Celestron is using that same technology to allow star gazers to connect to the night sky and enhance their experience of the cosmos in fun and unique ways. This is something that I did detect fairly often and you have to be more careful than those with larger exit pupils to set the IPD (Inter-Pupillary Distance) absolutely right.. Ocular Lenses
You can adjust the distance between the centers of the ocular lenses to match that of the distance between your eyes by opening and closing the central hinge. SkyMaster 20x80mm Porro Binoculars Popular Science by Celestron SkyMaster 9x60mm Porro Binocular with Smartphone Adapter and Bluetooth remote Objective Lenses & Magnifications
Apart from the bridges and a few other details, most of the exterior has a rubber armor covering it. This depth will do more to protect the lenses from gathering dust, light rain and from scratching them against objects. DUE TO EXTREMELY HIGH DEMAND, WE WILL NOT BE TAKING NEW ORDERS UNTIL MONDAY, DECEMBER 14. The amount of softening of the image at the edges of the view was also very minimal and less than what I would expect to find on a binocular within this class range. Most 42mm binos in my experience inset their objective lenses about 8mm - 10mm inside the ends of the barrels, but these are located a full 16mm inside, which is very deep. Having a good balance when holding your bino is always desirable, but on a high powered and relatively heavy one like this, it is even more important. Indeed, maybe it is just the unique shape of my face that does not fit the larger diameter eyecups, but I did find that by rolling down the eyecups, I was able to get the full view much more easily by just lightly resting the binocular against my face. It offers serious large aperture light gathering in an affordable and reasonably lightweight configuration. This combined with the deeply textured rubber track that runs around it makes reaching it and turning it with precision nice and simple even with thick gloves on. Over long periods, this pressure did become a little uncomfortable. With such a long minimum focusing distance, it was harder than normal to look for any color fringing around the edges of objects caused by chromatic aberration as I usually find it easier to spot on nearer objects. At 33mm in diameter, the centrally located focus wheel is nice and large. Download the Celestron PWI Telescope Control Software. As I say, this was not bad at all, just a tad tighter than what I would have preferred. The overall image also looks nice and flat and stays in focus from the center of the view right until the edges where this minimal softening occurs. There is no argument that these and indeed most other astronomy binoculars are big, indeed with their 70mm objectives, I describe the as being "Giant Binoculars" and are much bigger than "Full Sized" ones. However in low light and very low light conditions, when your pupils dilate (usually between 5mm to 9mm), the smaller exit pupil means that they will appear less bright than a binocular with a larger exit pupil. This means that some, but not all those with glasses may have enough room to play with in order to get the full image without any halos or dark rings around the edges. Sign up to receive sale alerts, news about upcoming celestial events, and telescope tips from our experts! Unleash the full pointing accuracy of your Celestron computerized telescope with a specialized telescope control software suite. The 13mm of eye-relief is ok, but not great, for a binocular to have a long eye-relief, I usually suggest a distance of at least 16mm. SkyMaster 12x60mm Porro Binoculars The higher magnifications also generally extends the near focus distance, but at 75ft, the minimum focus distance of these is better than many others in this class (see table above). Seeing the iconic rings around Saturn is a great feeling, but it is difficult to see where the rings separate from the planet. 2022 Celestron, LLC. Below are similar pairs of Binoculars that you may also want to have a look at: Celestron 15x70 Skymaster Binoculars offer phenomenal performance at an incredible price for astronomical viewing. I would say that in most cases this price level is probably about as low as you should consider going if you still want to achieve a reasonably good quality image, this is especially true with higher magnifications and so it will be interesting if Celestron have managed to not sacrifice too much quality by keeping the cost down to this level. This award-winning optical system reduces visual defects like field curvature and coma, creating an ultra-flat field for pinpoint stars all the way to the edge of todays largest imaging sensors. This was one of the reasons that I chose this 25x70 SkyMaster over the other larger pairs as I wanted a binocular that had plenty of reach and light gathering ability, but are still just lightweight enough for me to hold and use them without having to fix them to a tripod: BBR Rating for Body Stats compared to other Giant Bins: 9/10. However with these, it was a little different as I did not have a similar pair with me to compare them against, so I used a couple of my 8x42 benchmarks as I thought it would be interesting for those who have a standard bin, to know how they compare to these. CPWI has an extensive object database, employs PointXP mount modeling, and more. To produce a low cost binocular, manufacturers have to make some sacrifices to keep the costs down and so like many in this class, the quality of the extras like the carry case and the neck strap is poor when compared to higher priced models. Focusing
Extras & Attention to Detail Rating: 5/10. This is why a binocular is great for scanning the sky and a telescope is great for focusing in on a single distant object. Tripod Adaptable
The rainguard or the eyepiece cover, like the objective lens covers is made from a soft rubber, but unlike those, it does not fit as well and easily comes away from the lenses. With a price tag of less than $90 / 80, they are what I consider to be a low cost binocular and indeed I think they are aimed at those looking for a low cost option for scanning the skies at night or over long distances during the day. Whilst it looks to be reasonably well made, the soft carry case is very flimsy, with only the thinnest amount of padding and so will not protect the binocular much should they be dropped. Our proprietary StarBright XLT optical coatings dramatically increase transmission, up to 97.4% on our Schmidt corrector lenses. These eyecups worked well enough for me, but I did find that I had to push them against my face quite firmly in order to get my eyes a little closer in order to see the full view, without any rings on the edges. The Eyecups
The 25x70mm version is one of the most popular models in the series. Obviously I did not test them to destruction, but to me they look to be easily strong enough to take most normal, day to day bangs and bashes. Planetarium software package which provides easy-to-understand explanations and impressive visuals of all kinds. Celestron has designed and engineered the larger SkyMaster models to meet the special demands of extended astronomical or terrestrial viewing sessions. control and Sky Viewer display makes selecting your target easy. For most full sized binoculars this adapter would be more than sufficient and whilst it worked fine on these, I did find that the extra weight and leverage of this larger binocular meant that there was some twisting movement when you aim and then stop the binocular on the tripod (you can also see this movement on my video below). If you don't wear glasses, you will most likely just keep these cups in the "rolled-up" position, whereas if you wear glasses, you need to allow for the distance that your glasses will add to the total distance between the ocular lens and your eyes and so you will roll the rubber eyecup down. It is made from a hard plastic and has metal threads to prevent cross threading. SkyMaster Pro 20x80mm Porro Binoculars Celestron do include a pretty good adapter with this package. Near Focus
Today, our world-class team of optical and electronic engineers continues to push the boundaries of technology. The soft rubber eyecups have an external diameter of 50mm, which like the rest of the binocular is larger than what you find on most standard bins. Because many people who are considering these will be getting them for astronomy, I thought I would pass on what you can expect to see when looking at the night sky through them. Fastar Technology allows imagers the option of drastically increasing the speed and sensitivity of their Celestron optical tube, allowing bright, detailed images with short exposures. What is for certain is these are not fogproof and so there is a small possibility that the inside glass surfaces could steam up if there is a lot of moisture in the air and you get a rapid temperature change, like observing the stars outside on a cold night and into your warm house. The Zhumell Tachyon 25x100 and the Celestron SkyMaster 25x100 on the other hand also have 4mm exit pupils (100 25 = 4) and you still get the added reach and image detail with the 25x magnification. ED glass is specially formulated and contains rare-earth compounds that greatly reduce a visual defect called chromatic aberration. control and Sky Viewer display makes selecting your target easy. I would also like to make it clear that the views expressed are completely my own, honest opinions and I have not, nor never will be persuaded to write in a certain way. Celestron do not state what materials they use to construct the main chassis from, but as they are exposed, it is easy to see that the bridges are made from a type of metal. SkyMaster 15x70mm Porro Binoculars To try and put these Celestron SkyMaster binoculars into perspective and to help you make some quick comparisons, I have included the main specs and features of these as well as a number of other similar giant binoculars: Strong Points: I have read many articles and pieces of advice on forums written by so called experts claiming that you cannot get a stable view from any binocular with a magnifications of around 15x and above. This is simply not true, the relatively low weight and good balance of these (once you hold them right) means that I was easily able to look through them over fairly long periods using nothing more than my hands during the day. General Price Range: (2/6) Low Cost Binoculars. Likewise they would be ideal for long distance puffin, seal & whale watching and great for watching sailing or ships, once again at longer distances and where you may not want to use or carry a tripod with you. This body shape has been tried and tested over many, many years and is one that makes for a very comfortable holding position that helps prevent fatigue when using bins over longer periods and which also helps you to keep them as still as possible for a shake free image. This review was written a few years ago now. Diopter Adjustment
Weak points? Like the majority of binoculars I review, these SkyMaster's are tripod adaptable, but unlike most "standard", general use binoculars, the need to attach these to a tripod is far greater. Below is a link that will take you to a page with online retailers in both the US and UK that sell Celestron 25x70 SkyMaster Binoculars this page makes it easy to compare prices and then to buy from your preferred option: Contact Me | About Best Binoculars | Privacy | Sitemap | Copyright 2022 Best Binocular Reviews | Do You Want to Review Binoculars & Write for BBR? All Rights Reserved. The SkyMaster comes with a basic cleaning cloth that will be fine for a simple clean, but I would suggest getting a proper optical cleaning kit for a more thorough clean and to be sure that you don't damage the lenses or their coatings. External Covering
The colors look nice and natural, without any artificial tints, but are less vivid than on my benchmarks. I find that this intuitive grip makes aiming your binocular or spotting scope in the direction you want so much easier and faster than most normal ball or pan heads that I have used and is one that I highly recommend. Objective Lens Covers
Optical Stats Rating compared to other Giant Binoculars: 6/10. What this means is that some, but not all (usually the first and the last) of the optical surfaces have been coated with many layers of anti-reflection coatings that reduce or eliminate unwanted light reflections, which increases the transmittance or the amount of light that gets through the system and to your eyes than if they were left untreated. Enter it during checkout! This is not that uncommon in this price range, but for such a large heavy binocular I would really have expected to see a much better padded and wide strap that would make carrying them far more comfortable. To give you an idea of how these dimensions compare, I have included the dimensions of a few fairly average full size 42mm bins and that of a few other giants in the table below: Weight
Learn more about extra solar planets imagery, 3D Star rendering, observation planning, telescope control, multiple-panel printing, and much more. Great for home, classroom, or home-school use, this kit includes all the essential items youll need to begin exploring the wonders of the microscopic world. I tried this extreme and this difference did not seem to affect the eye-relief too much, so I do not think that this is anything to worry about. The top flap is held closed with a strip of Velcro which holds very well, but makes a huge noise when opening it, which to be fair is not such a great deal with these long distance binoculars as whatever you are about to look at will probably be a fair distance away and not be frightened off. The Celestron SkyMaster binoculars all use use porro prisms made from BaK-4 glass, which is in most cases thought to be better than the BK-7 prisms that are quite often also found within this price range. The great thing is that they can of course also be mounted to a tripod, so when you have a fixed or slow moving target, like the moon, a distant ship or are an area far off in the distance the added stability of a tripod means that you can get the best result possible. From the SkyProdigy, a telescope so smart it can align itself, to our high-performance EdgeHD optical system, weve revolutionized the hobby of astronomy for beginners and advanced amateurs alike. The best binoculars are "Fully Multi-Coated", which means every single surface has multiple anti-reflection coatings. CPWI has an extensive object database, employs PointXP mount modeling, and more. Manual & Warranty Information
One of the most important factors in a telescope is its transmissionthe percentage of light that reaches the focal plane. (For a demonstration, watch the walk-around video towards the end of this review). Celestrons aplanatic EdgeHD optics revolutionized astroimaging. Sky recognition technology that has revolutionized the manual telescope by eliminating the confusion common among beginners and enhancing the user experience for even seasoned telescope users. Carry Case
So whilst this is very narrow when compared to your average 8x42 binocular with a FOV of around 350 - 430ft at 1,000 yards, it is still a lot wider than what you get with most telescopes. Porro prisms on the other hand do not need phase correction coatings and because you get total internal reflection of the light waves, you do not need to add highly reflective coatings to it's surfaces and so they perform as well as much more expensive roof prisms. This telescope control software replaces the hand control and allows the user to remotely control their Celestron computerized telescope from their personal PC or laptop. However the huge trade off is the increased cost, size and weight (se table above). With the rubber covering most of the body it is hard to see what the tubes of the barrels are made of, but to me, they look to be made from a polycarbonate, which is a low cost but lightweight option. As for astronomy, you do get plenty of reach and image detail when compared to most other astro binos that generally have a lower power, but to get this you do sacrifice the width of the view and the smaller exit pupil means that they are not as bright as the lower powered ones or those with larger objective lenses. I also spend a lot of time researching every product I write about and I do my best to ensure that all the facts and figures are correct, but I have been known to make the occasional mistake, so if you spot any please feel free to let me know. There are between 10 and 18 glass surfaces within most binoculars, all of which have the potential to reflect light in an undesirable way. This for me is a real strong point as it opens them up to a wide range of uses (see below). The roof prism does have some advantages in that it's straight though shape allows you to make a more compact and streamlined binocular, but you also need to add a number of expensive coatings to it's surfaces to get the best out of it, which in this price range is either only partially or not done at all. On the trail, at the job site, in the classroom, or simply sitting at home relaxing the Celestron Elements ThermoTank 3 will keep your hands toasty. To find out if they achieved this and all my other thought on them you can read my full and in-depth Celestron SkyMaster 25x70 binocular review below: Body Design
These observations were on a night with a moon that was almost full and a fair amount of light pollution, so I am sure it would be possible to see more if the conditions were better and with more experience of where to look! Sure you get a more stable view using a tripod and possibly people with shaky hands may find it difficult, but I would say that the average fairly fit person should be able to do the same. SkyMaster 18-40x80mm Zoom Porro Binoculars So it was no surprise that the image I could see through my top end and my mid level 8x42mm controls was brighter than that through these. This is usually more of a pain than anything and will gradually go away, but is something to keep in mind. The trade off to larger lenses however is added size, weight and cost. Inter-Pupillary Distance (IPD)
Another benefit is that the overhang acts like a lens hood on a camera, which means that it can help prevent or reduce any image flair from the sun. Neck Strap
Celestrons FREE planetarium app is an astronomy suite that redefines how you experience the night sky. Compared to an 8x42 binocular that can have a near focus of around 6ft, the close focus of these seems very far away, but focusing on near objects is not really what these long distance binoculars are about anyway. Looking at smaller deep-sky objects, like planets, stars and clusters a tripod is pretty much essential to keep the view steady enough. I think better quality twist-up eyecups set at the correct amount of eye-relief would really help in this area. On a low cost or cheap binocular like these, a porro prism design is also quite often optically superior than that of similar priced roof prism ones. For me the the Orion Nebula appeared as a very faint grey blotch, but once again think it may be possible to see more on a better night. Have a promo code? So to help with this, Celestron have also added a couple of thumb indents on the underside that are designed to direct you to hold them where you can get a good grip and easily reach and turn the focus wheel with your forefingers. As expected, Mars is easily observable as a small red ball, but you can't really make out any other features than that, but am told that in better conditions you may be able to make out the basins from the red areas. Take control of your telescope! This rugged, 3-in-1 device features a true tactical 3-mode flashlight, a hand warmer, and a portable power bank for recharging your personal electronics on the go. nleash the full pointing accuracy of your Celestron computerized telescope with a specialized telescope control software suite. Again with such a comparatively far minimum focusing distance and a much narrower field of view, it was not really possible for me to compare and therefore judge the depth of view between these and my 8x42's. SkyMaster 25x100mm Porro Binoculars The 25x70 SkyMaster has a viewing angle of 2.7, which translates to an image that is 47m wide at a distance of 1,000 meters (141ft at 1,000 yards). Popular Science by Celestron SkyMaster 9x60mm Porro Binocular with Smartphone Adapter and Bluetooth remote, SkyMaster 15-35x70mm Zoom Porro Binoculars.
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