Sell biological eyepiece EYE-WF10X/20-A high eye point

Description

1.Compared with plan series, WF has lower price but still have big field, cost performance is high.
2.Field number ?*0mm,field area could reach **4mm2, *1% bigger than common eyepiece.
3.Add micrometer, you could find the center and measure object size conveniently.
4.We use the same high quality aluminum as plan series and do anodise black and matte process also.
5.Suitable for biological microscope.