Which part of the microscope do you look through?

The eyepiece lens is the part of the microscope through which you look to observe the specimen. It is located at the top of the microscope and contains a set of lenses that magnify the image formed by the objective lens below it. The eyepiece typically has a standard magnification of 10x or 15x, allowing you to see a more detailed view of the sample being examined.

When using a microscope, the light coming from the specimen passes through the objective lens first, which magnifies the image significantly, and then the image is further enlarged by the eyepiece lens as it enters your eye. This dual magnification is what enables you to see tiny details in the cells or tissues you are studying.

In contrast, the objective lenses are responsible for the initial magnification of the specimen, the condenser is used to focus light onto the specimen, and the focus adjustor helps to bring the specimen into a clearer view by moving the stage up or down. Each of these components plays a crucial role in the overall functionality of the microscope, but the eyepiece lens is specifically where you direct your sight to observe what has been magnified.