The Occer 12×25 Compact Binoculars are built for mid- and long-range observations, such as birding and stargazing. Weighing less than 9 oz, they are portable enough for you to carry wherever you go. 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. Nonetheless, there are a few exceptions, such as the Occer 12×25 Compact Binoculars. They have a 12x magnification at only less than 9 oz. The lenses are fully multi-coated. This reduces the reflection and ensures brighter images. Anti-reflective lens coatings are essential, otherwise, modern binoculars with their many lenses would lose too much light so that everything would look quite dark through it.

You can join aluminium box sections by welding them, usually using TIG welding. It is also possible (and much easier) to use plastic tube connectors, which work by simply inserting into the ends of aluminium square tube or other box sections to create frames or longer lengths. Comparing it with other binos, ist not 12x, more like 10x magnification. But no matter, for a 25 mm lens an 8x to 10x is enough anyway. But they all have one thing in common, they bring products on the market that are really unbeatable cheap, and often there are even tons of accessories included. Now let’s see if that’s any good. Mksutary 12×25 Poro Prism BinocularsWhen you hold the binoculars in your hand for the first time, the thing is more compact than expected. Well, it’s 12×25. It’s very light, just under 10 ounces, and has grippy rubber armor on what appears to be a polycarbonate chassis. Mechanics Prisms are essential in binoculars to see an upright normal image. Frequently used types of glass for prisms are the crown glasses BK7 and BaK4, the latter being more expensive but giving the Bino better optical performance in terms of resolution and a bright, color-true image. 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. These Occer binoculars are ideal for beginners and occasional enthusiasts. Since they are lightweight and affordable, they are also suitable for kids.

I have to admit that I was really amazed when I was looking first through the Mksutary binoculars, I expected worse. Of course, it’s nothing earth-shattering, and even if the optical performance leaves a lot to be desired, for so little money, you can not ask for more. Are They Worth It? These budget-friendly binoculars are ideal for almost every novice and occasional user, thanks to their foldable rubber eyecups, long eye relief, and user-friendly focus mechanism. Whether you are buying one for yourself, getting a useful novelty item for a kid, or gifting a friend, they are worth considering. The Occer 12x25s are popular–at least they seem to sell really well–because they have a very appealing price compared to more expensive brands. That immediately draws attention to the question of its quality, and therefore more relevantly, to its usefulness. To tell the difference hold the binoculars into the light and look at the exit pupil. If it’s a BaK4 glass you can see a beautiful round exit pupil, it is a BK7 prism angular shadowing appear.The equation calculator allows you to take a simple or complex equation and solve by best method possible. The smaller lens diameter means that less light is collected. This is not a problem in daylight, but you cannot use them at dusk or at night. 12×25 produces an exit pupil only 2 mm in size and only little light enters the eye. In low light or at night when the pupils are dilated, large exit pupils are required to see brightly enough. The repeatedly advertised low light or night vision is not really to be taken seriously. These compact binoculars are unsuitable and not usable for low light conditions, simply because of their small collecting lense and also small exit pupil.

As a pair of binoculars for kids, we think they fare better than the similarly priced National Geographic 6x21 binoculars which we've also reviewed because of the increased size of objective lenses, even if we can't tell precisely how much higher. The Occers also have a closer minimum focusing distance so they can be used in and around the house to look at things 'just for fun.' Whereas, with the National Geographic pair you need to be stood a reasonably long way away, which some children might find frustrating. If the Occer 12x25 compact binoculars aren't for you: There are quite a few of the 12×25 compact roof prism binoculars mentioned, all of which look pretty much the same and also have pretty similar specifications. When you read the product description, they advertise and promise a lot for very little money. Most of them brag with professional, high performance, FMC, low light, night vision, and so on. When it comes to binoculars, size is not necessarily proportional to performance. Sometimes, even the smallest ones are more powerful than the biggest. The Occer 12×25 Compact Binoculars is a great example of a lightweight pair of optics that does a pretty decent job. 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. These binoculars are suitable as all-around binoculars for anyone who wants to see far stuff a little closer, without expecting great optical performance. The low price makes them particularly attractive for beginners or nature lovers who leisurely want to observe wild animals, scenery and nature, or sporting events.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. Remember to put these optics in a clean and dry place when not in use, especially if you want them to last long. While they are of decent quality considering the price point, they can’t take that much beating. You’d want to handle them with as much care as possible. 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

When you google who the manufacturers are, you often come across large companies that manufacture electronic components and all sorts of other gadgets. 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.In terms of optical performance, sharpness, and contrast, the image quality is not nearly as good as in somewhat more expensive binoculars. But what can you expect at such a low price? 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. Supplied in a planed finish which is easy to paint, stain, wax or varnish to complement any interior design or d_cor Disclaimer: All calculators, tools, and results featured on calculateconvert.com are to be finalized and not be considered a quotation or binding contract. BaK4 was specified in the Mksutary specs, but if you carry out the test just recommended, it seems more like BK7 prisms.