What makes a good pair of binoculars depends on the intended area of use, as does the magnification factor. A magnification of 8 to 10 times is usually sufficient for hunting and hiking. As the magnification increases, it becomes more and more difficult to hold the binoculars steady so as not to blur the image. Binoculars with 12 or 15x magnification are bigger and heavier and don't just disappear into a jacket pocket. This is more of a hindrance when hunting and hiking. This is why binoculars with high magnification are best suited for observation and bird watching, preferably with a tripod. In addition, a nitrogen filling, which protects the glass from internal fogging, is recommended. A lotus coating on the outer lenses allows water droplets to roll off, which is particularly important for outdoor use. In addition, good binoculars should be as light, compact and robust as possible.