Additionally, this binocular is not waterproof. However, if you have the budget, the Nikon Aculon A is a worthwhile piece of kit for those looking for brilliant, wide-angle views of the night sky.
Meade Instruments ' 15x70 Astro Binocular will reveal pleasing views of the lunar surface, the planets and the brightest deep-sky objects. The binocular is reasonably priced for its magnification, with only a slight degree of false color as we slewed from one bright target to the next. What's more, there's no fogging on the optics during temperature changes. Sweeping over to our moon, the craters are a sight to behold and are breathtaking, with the lunar surface appearing voluminous in the 4.
These binoculars are heavy, weighing in at 3. The view they present is very reasonable: the fuzzy glow of the Orion Nebula Messier 42 is pleasing and we could just make out three stars in the Trapezium Cluster at the nebula's heart — greater magnification would be needed to tease out the fourth bright star in this star-forming region.
The moon is a stunning sight, fitting in the field of view comfortably and with a slight degree of false color. The lenses also have a habit of fogging over, which can be irritating, but wasn't a major dealbreaker: the Celestron UpClose G2 10x50 binocular is still recommended for its lightweight design and low cost.
The Nikon Action EX 12x50 binocular makes for a good comparison with regular 10x50 binoculars, in that you get the same aperture at 50 mm but a greater magnification of 12x.
The build is of high-quality, with comfortable rubber grips and a large focus knob that features a good range. Eye relief is very good at 0. Since you're magnifying the same amount of light collected by 10x50s, a higher magnification usually means images are less bright.
However, thanks to the multi-coated lenses and high-refractive-index prisms of the Action EX 12x50, this loss of brightness is not really noticeable. What you get are great, high-contrast images. Saturn offered a test of this binocular: its rings were not resolvable on their own, but the skywatcher will notice definite ansae — the extension of the rings at either side of the planet, giving Saturn an oblate shape.
When viewing stars, the images are sharp and pinpoint at the centre of the field. There does, however, seem to be some curvature around the edge of the 5. The Nikon Action EX 12x50 is a heavy binocular though, weighing in at 2. This relatively unusual combination of 12x magnification and 56 mm aperture objective lenses combines power with light-gathering ability, while still being small and light enough to be handheld comfortably with steady hands.
Turned towards the moon, the craters exude superb clarity and contrast. There is a slight amount of distortion through the optical system that begins about three-quarters of the way from the center of the field, with some stars displaying a degree of softness. These stars took the appearance of blobs rather than points of light.
The Celestron Nature DX 12x56 is waterproof and also keeps fogging at bay. In terms of build, the binocular is pretty good. The rubber handholds are comfortable, the 0. At inches mm in length and weighing 3 lbs. Despite the larger 70 mm objective aperture, the higher magnification of 15x reduces the apparent field of view to 4.
That said, the more light gathered and higher magnification makes details pop out that are more vague, or fuzzy, when observed through smaller binoculars. Join our Space Forums to keep talking space on the latest missions, night sky and more! And if you have a news tip, correction or comment, let us know at: community space. Also make sure you have access to dark skies. As magnification goes up, apparent brightness of the image goes down. Poor optical design can hack off the sides and you will see this clearly, if you can hold the actual binoculars in front of you.
If shopping on the Internet, you'll have to pick a brand with a decent reputation, or trust a review like ours. If you are reading this, you no doubt have noticed there are many different configurations on the market. One size definitely does NOT fit all. Some skywatchers prefer strong magnification to resolve the thousands of light-points within dense star clusters , and to pick out fine structure within galaxies.
Others opt for a wide-field, immersive "space-walking" experience, preferring low-mass portability to power. Like sports cars or yachts, there's a tendency to want to own the more powerful thing. Certainly, there're some impressively large — "gotta use 'em on a tripod" — monster binoculars on the market. And as we age, there may be good reasons to dial up the magnification a bit more on this later.
I believe the best binoculars are the ones you have with you. Meaning: Buy the pair you'll be most likely to take on your travels more often, whether you're going out into the backyard or across the planet. That implies a smaller and lighter form factor, which tends to be lower power. If this is your only pair, I'd suggest an objective no larger than 50 mm the number after the "x," as in 7x40 , and a magnification no bigger than 10x.
Really, you'll be OK with even smaller binoculars, as long as they are of high-quality optical glass. You can carry an 8x35 pair all day for bird- or people watching, and they won't make your arms tremble — and your stars dance like drunkards — when you pick them up at night. The wider view-field of most lower-power binoculars is usually a plus for skywatching. Meteor showers offer a practical example. You never know exactly where the next bright streak will appear.
Yes, you're pretty sure it will come from the "radiant. But, in practice, the radiant is an area at least 10 degrees across. You will spot more meteors with a wider field of view. So think carefully about size, weight and stars turning into wiggly lines before you go big. Don't expect telescope companies' marketing pitches to tell you this.
We live on the Water Planet. Sometimes it condenses onto your binoculars. Sometimes it rains. And sometimes you drop them overboard. So looking into waterproof binoculars may be a concern depending on when, where and how you plan to use them.
But cheaper binoculars may come with their own built-in water problem, right from the factory. Air laden with water vapor can be sealed in, waiting to fog, bead or rust your binoculars. Look for ones that have been "nitrogen purged" before the manufacturer bottles up the optics. So, you found the Andromeda galaxy M31 with your 2-lb.
Now you want to actually see it without all that zigzagging round, turning your stars into lightning bolts. And you also want to show it to your partner. For a given distance, binoculars with higher magnification power bring objects closer compared to those with lower magnification power.
Besides, higher magnification power means higher resolution for clearer image details. If you love watching celestial and terrestrial subjects that are far away, then you should consider buying more powerful binoculars.
You can tell the size of the objective lenses by looking at the name of the binoculars. The larger the number, the larger the aperture. If you want brighter images even in low light conditions, binoculars with larger objective lenses larger aperture will work perfectly. Besides, larger objective lenses have improved light-gathering capabilities for brighter and sharper images. Lenses on binoculars have some levels of coating applied to them. The coating helps them to have reduced reflections, improved contrast and image sharpness.
For optimal performance, choose binoculars with fully multi-coated lenses. Such binoculars have all of their lenses coated with anti-reflection compounds for zero loss of light and unmatched image brightness and contrast.
If you always like studying fast-moving subjects such as sports cars, looking for binoculars with a wider field of view might be the best idea. Binoculars express their field of views in two separate ways: First, they might express it in terms of feet or meters per a specific distance.
For example, ft. Secondly, they might express it in terms of angles, which is known as the angle of view AOV. For example, 4. Before opting for a larger field of view, make sure to compare the binoculars you intend to buy with other models with other features held constant.
Binoculars for images on the exit pupils. It, therefore, means exit pupils with larger size gives you access to larger and more clear images. Your binoculars express the size if their exit pupils in millimeters. The higher the number, the larger the exit pupils and the clearer the image you get.
You should also make sure that your binoculars have a waterproofing agent to keep all the objective lenses and prisms from moisture. Make sure the casing tightly conceals all the components of your product. If possible, opt for a product with dry nitrogen gas for absorbing all moisture from the internals, to reduce lens fogging.
Weight is another crucial factor to keep a closer eye on. If your binoculars are heavier than 3 pounds, you might tire after some time, making you need the services of a tripod stand. Consider the weight before making a purchase. Lightweight designs take tripod stands out of the equation, meaning you won't have to buy one.
Astronomy binoculars offer an inexpensive alternative to telescopes. They have impressive magnification powers, with some having up to 39X magnification power. With such enormous powers, binoculars bring subjects that are very far away, such as the moon and stars closer. As such, they reveal more details than some telescopes.
You can use them to study celestial objects like stars and planets. Binoculars comprise of a series of concave or convex lenses assembled in a tube. In case of an emergency, you can disassemble the lenses and use them to start a fire. Convex lenses are best for focusing solar energy on a single point until fire actually starts. Fortunately, most binoculars have a smartphone adapter with clamps that hold your smartphone in place. You can then adjust the eyepiece until it perfectly focuses on the preferred subject for some video recording or photoshoots.
Binoculars have objective lenses with impressive aperture sizes. As such, they gather as much light as possible even in low light situations. They can pick light rays from further objects excellently.
You can, therefore, easily spot wildlife or bear before you can even sense danger. This makes them ideal for use for spotting wildlife and bears during biological studies.
You can also use a pair of binoculars to observe live performance on stages that are far away. You can get clear images of subjects even at dusk or dawn. Large objective lenses coupled with high magnification power means you will view your favorite live band closer with high resolution than people without the binoculars.
You can use your binoculars to study the Milky Way. That's possible because binoculars have magnificent magnification powers, large objective multi-coated lenses and HD light-transmitting Porro prisms.
All these features bring the stars in the galaxy closer for detailed study. Besides, binoculars offer an inexpensive alternative to telescopes and they are portable. There are a few very strong binoculars out there.
They have a magnification power that peaks at 39X, which is the highest power on the list. But overall, a pair of Sunagor Mega Zoom x70 Binoculars are arguably the most powerful.
You can zoom them from 30X to X for a remarkable resolution. Besides, they have 70mm objective lenses, which make them giant binoculars for stargazing and bird watching.
Your eyes are more sensitive to green lights. As such, the best binoculars have green color-coated objective lenses for green images, which enhances image clarity. Roof prisms permit light rays to directly pass through the barrels of the eyepieces. On the other hand, Porro prisms let the light rays to jog through the barrels before reaching the exit pupils.
They have several useful features, including tethered lens caps for the objective lenses and the eyepieces. They are covered in a substantial, ribbed rubber armour that offers protection against everyday knocks, and gives a secure grip even when the binoculars are damp from dew. Not only are they covered in a substantial rubber armour, but they come with a semi-rigid case that offers excellent protection against the rigours of regular, varied use. Their field of view is on the narrow side at 5.
Star colours were vibrant in the eyepieces. Images were bright and stars were tack-sharp across the middle 75 per cent of the field of view.
We thoroughly enjoyed scanning colourful star-fields with these. They are very well-balanced, which makes them feel even lighter than they actually are.
This means you can use them for long periods before aches and strains set in. The ribbing on the prism housing gives a very secure grip, even if they are damp with dew. From the moment you take these binoculars out of their lightly padded case, they ooze quality. They have a robust feel in the hand and everything — hinge, focusing, twist-up eye-cups — works smoothly with just the right amount of stiffness to prevent accidental readjustment.
They are just as impressive under the stars, which snap to focus anywhere in the central 85 per cent of its 6. Colour rendition and control of false colour are both very good. There is just enough eye relief for spectacle-wearers to be able to see the entire field of view. The rubber armour stops them from becoming slippery when wet with dew. The Vortex Crossfire is a good example of how modern manufacturing processes have narrowed the gap in optical quality between Porro and roof prism binoculars of similar prices.
The 6. Colour rendition was excellent; not only do the deeply coloured stars seem vibrant, but the subtle differences between similarly coloured ones are easily visible as well.
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