AmScope EP15X305 Pair of WF15X Microscope Eyepieces (30.5mm)

30.5mm Mounting Size (in diameter) 30.5mm Mounting Size (in diameter) Wide Field of View Fits four mounting sizes: 23mm, 30mm, 30.5mm, and C-mount (two mounting adapters included) Calibration kit included for precise measurement is includedYou may also like AmScope EP10X305 Pair of WF10X Microscope Eyepieces (30.5mm).