what does the eyepiece do on a microscope

The eyepiece, also known as the ocular lens, is the lens nearest to the eye. It is half of the optical system that allows the viewer to see the object with a magnified view. The eyepiece magnifies the image produced by the microscopes objective so that it can be seen by the human eye. The eyepiece works in combination with the microscope's objective to further magnify the intermediate image so that specimen details can be observed. The combination of the objective and the eyepiece projects and magnifies the real image of the object onto the eye. The total magnification of a microscope is determined by the sum of the magnification of the objective and the eyepiece. To achieve the best results in microscopy, objectives should be used in combination with eyepieces that are appropriate for the correction and objective type. The microscopist can adjust the telescopic eyepiece so that it is parfocal with the ocular eyepieces to make it easier to frame and take photomicrographs.