Telescope-Exepieces

The purpose of a telescope eyepiece is the magnification of the image, which is generated by the main optics of the telescope. Each eyepiece has a specific focal length, which is given in millimeters (mm). The smaller this focal length, the higher the appropriate magnification. An eyepiece with a focal length of 9mm for example, provides a higher magnification than an eyepiece with a focal length of 26mm.