The revolving nosepiece on a microscope holds two or more objective lenses and can be rotated to easily change power
. It is located between the ocular lens (the eyepiece) and the stage and attaches to the microscope’s arm at the bottom on almost all models
. The revolving nosepiece is circular and has three or four cone-shaped lenses attached to it
. The purpose of the revolving nosepiece is to hold multiple lenses, allowing the user to turn it to achieve various levels of magnification
. This allows the user to locate objects using a low power lens and then examine the objects more closely using a higher power lens
. The revolving nosepiece also helps to keep the lenses clean and free of dirt and debris
