These binoculars have an eyepiece diameter of 10 and a field of view of 15, making them perfect for long-range viewing. You can easily focus with the central focus type and the lens coating is FMC, ensuring a clear and crisp image every time. With a magnification of 8, you can see even the smallest details. Designed with a lightweight metal body, model number 40x 22, and an objective lens diameter of 22, these binoculars feature BAK4 prisms for superior light transmission. They also have an IPX4 water resistance level, making them a durable and reliable choice for any outdoor excursion.