About our eyepieces, there are two major categories: One is 23.2mm diameter, aother is 30mm diameter.
23.2mm diameter:
Our B series biological microscope and MDJ metallurgical microscope uses WF10X/18mm eyepiece.
B302 series, SMART series biological microscope, and MIT200, MDS300 metallurgical microscopes use WF10X/20mm eyepiece.
These eyepiece caan add pointer and reticule. It need to note the saler before purchase, because the reticle of the eyepiece needs to be used with a pressing ring device.
30mm diameter:
BK6000, BDS400, MDS400, MIT300, MIT500, BK-PO AND SZ650 use WF10X/22mm eyepiece.
Like this dismeter eyepiece, this can be used directly with a reticle. The eyepiece itself has a pressing ring device.