PupilCam does not fit on microscope
The PupilCam series will fit most microscopes with an eyepiece diameter between 25 mm to 33 mm. The 1401KRM PupilCam is designed to fit over the 28 mm monocular microscope eyepiece. The 1401KRM PupilCam may not fit on most binocular microscopes. It will not work outside this range. The 1401KEM fits eyepiece tubes with a diameter of 23mm and an optional adapter is available for 30mm eyepiece tubes.