10x42 binoculars: for dark surroundings

10x42 binoculars are medium-sized with a magnification factor of 10 and an objective diameter of 42 mm. The 10x magnification ensures you see additional details at a greater distance and an objective of 42 mm lets in more light than a 32 mm objective. This is practical when you, for instance, go out at twilight to look for birds or wild animals. However, these bins are relatively large and heavier. 10x42 binoculars are the perfect choice when you are going to use them in dark surroundings and size and weight are not as important as performance. As such it is a compromise between the quality of the image and the weight and size.