12x25 Compact Binoculars with Low Light Night Vision, Large Eyepiece Waterproof Binocular for Adults & Kids,High Power Easy Focus Binoculars for Bird Watching,Outdoor Hunting,Travel,Sightseeing

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There are several factors that determine how far a pair of binoculars can see. With the right binoculars, you can see celestial objects hundreds of thousands of miles away, and you can also see animals a few miles away. A pair of 12×25 binoculars falls in the class of compact binoculars, because the objective lens is less than 30mm (25mm). Factors such as atmospheric conditions, the weather, and brightness will affect how far you can see with the 12×25 binoculars. The Magnification For a powerful pair of binoculars, these optics are surprisingly compact and lightweight. It is rare to encounter models that claim to have a 12x magnification and weigh less than 9 oz each. The problem with this combination is that it is challenging to stabilize the optics. Shaking will likely trouble you more often than you’d like. In terms of quality, the image is clear enough to see details of objects and follow their movements 300-450 feet away. A decent image at that too. But there’s some aberration and distortion at the edges that will gnaw at pro users’ needs.

Lens coatings also play a role since they optimize the binoculars’ ability to gather light and prevent glares. Fully multi-coated lenses are preferable for birding because they have multiple anti-reflection coating layers on all air-to-glass surfaces, giving you the best possible views of your favorite tiny creatures. Field of view refers to width at a distance. For example, if you are pointing the binoculars at something 1000 yards away, you can see an image through them that is 90 feet wide, but anything wider than that you wouldn’t be able to see. Higher magnification means a smaller field of view. At 12x magnification, the field of view narrows significantly, making it difficult to locate small and mobile objects when you are scanning from hundreds of kilometers. The eyepiece design plays a role in determining the field of view as well. The Diameter of the Field of Objective Lens An exact specification regarding the eye relief was not given in the product description either. I then just allowed myself an approximate estimate. With the help of a strip of paper and a light source, I get about 10 to 12 mm. I’ve never heard of the Mksutary brand before, but yes, the budget binocular market is teeming with weird new brands that nobody has ever heard of. One of the major issues with the Occer 12×25 Compact Binoculars is magnification. Occer says they have a 12x magnification, but this appears to be overstated. If you know your binoculars, you will easily realize that they don’t have a power of 12x. They seem to fall somewhere around the 7x to 8x range.However, the optical performance of binoculars depends not only on the magnification and the lens diameter but also to a much greater extent on the quality and processing of the optical glass. At 12x magnification, this pair of binoculars brings the image 12 times closer than an unassisted eye would. Because the magnification of this pair of binoculars is higher than 10x, it makes steady viewing a challenge. If you are moving, such as on a boat or in a moving vehicle, the binoculars might not be steady enough to allow you to view far away images. Field of View The size of the exit pupil is the result of dividing the diameter of the field of view by the magnification. For instance, with the 12×25 binoculars, the size of the exit pupil is approximately 2mm. This is low compared to a pair of 8×42 binoculars whose exit pupil is 5.25mm. This number indicates the size of the shaft of light that gets to your eye. The exit pupil also determines the amount of light that gets through the optics. A higher number means brighter images, which is especially useful in low-light conditions. A higher number also means that the object will still be bright, even if your hand shakes. magnification is quite a lot for small compact binoculars and might bring stability issues. It could be difficult to hold the thing still so that the images don’t blur, which is difficult because of the low weight.

A 25mm lens is quite small, but sufficient for daytime observation when there is enough light. Less so when the light is rather weak when it is cloudy or you are out in the shady forest. After all, in a 12 x 25 instrument, the exit pupil is also quite small with just over 2 mm, not very suitable for twilight or at night with only little residual light. The so-often advertised “night vision” does not exist with such compact glasses. The Occer 12×25 Compact Binoculars are lightweight, portable, and affordable. They have a BaK-4 Porro prism system and fully multi-coated lenses, delivering clear images with accurate color reproduction during the day. At dawn and dusk, they perform reasonably well considering their price. The right eyepiece has a diopter compensation, it only says +/- on a small scale. The rubber eyecups pop out with a twist by about 1/20 of an inch (6 mm), which is sufficient given the short eye relief. Nevertheless, I think that you really can’t expect much for so little money, the thing isn’t even waterproof, and that is something you would want. For just a few dollars more you could get better instruments from well-known manufacturers. Don’t fall for all the buzzwords like high power and night vision, touting the product. 8x to 10x magnification is enough for a 25 mm objective. On a general noteThese optics are suitable for observing objects at mid-range and long distances. Particularly, they are a decent choice for birding and a bit of stargazing. They may not be as powerful as high-end models, but they provide a far better viewing experience than the naked eye. Birding binoculars are common. They usually fall in the mid- and full-size categories. Particularly, 8×32 and 8×42 models are popular choices among avid birdwatchers. 8x is preferable to 10x and 12x because it has a broader field of view, which makes it easy to spot birds from a distance. However, that doesn’t mean that 10x and 12x optics are not at all excellent choices for birding. Multiplication Table is an useful table to remember to help you learn multiplication by 25. You should also practice the examples given because the best way to learn is by doing, not memorizing. Online Practice

While these optics work well enough during the day, they are not very useful as night-time optics (you’ll want to look into night vision goggles if you want something with built-in infrared illuminator). Nonetheless, color distortions are hardly noticeable during the daytime. These binoculars are equipped with a high-resolution BaK-4 Porro prism system and fully multi-coated lens coating. With these features, they deliver a crystal clear viewing experience almost instantaneously. The lenses produce natural colors with little-to-no color distortions. At the same time, they help prevent visual fatigue.

BaK4 was specified in the Mksutary specs, but if you carry out the test just recommended, it seems more like BK7 prisms. If you plan on heavy binocular use and want peace of mind from a Limited Lifetime Warranty, we recommend purchasing from a big brand like Celestron or Nikon. The specs and claims from Occer don't quite match up and we would only know the real durability of this pair after a few months of constant use. On the other hand, the Occer 12×25 Compact Binoculars’ edge-to-edge clarity leaves much to be desired. The field of view blurs around the edges significantly, which is no surprise for binoculars in this price range. The foldable eyecups of these binoculars make them suitable for most users, including eyeglass wearers and kids. Moreover, they are made of soft rubber, ensuring you a comfortable glassing experience for prolonged hours. You can easily adjust the eyecups according to your pupil distance, but for some users, these optics’ interpupillary distance (IPD) is not wide enough. Looking past the dubious claims in online write-ups of these binoculars, as a pair of kids binoculars, or a handy portable pair of compact binoculars for adults, they will likely do what you want them to, for the price.