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. When the eyecups are folded in (about 3mm from the lens to the eyecup edge) my eyes are too close and I have shadows on the side field of view, when the eyecups are unfolded, the field of view is fully there. 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. 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 We found the Occer 12x25 compact binocular eyecups a little too soft and they folded even with the slightest pressure applied. (Image credit: Tantse Walter)

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.

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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.

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. 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. 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.