eyepiece

An eyepiece is a small optical component used in telescopes and microscopes that magnifies the image formed by the main lens or mirror. When you look through it, the eyepiece enlarges the distant object or tiny details, making them easier to see and analyze. It also determines the magnification power of the instrument, which can often be adjusted by changing the eyepiece. Essentially, the eyepiece is a crucial part of your viewing device, helping you see distant objects more clearly and in greater detail.