Eyepiece specification
Hygens eyepiece: 5X/10X/16X
Plan eyepiece: 8X/10X/16X/20X
Wide Field eyepiece: 10X/12.5X/15X
Diopter adjust eyepiece: 10x/15X/20X/30X
Reticle cross eyepiece:10X
An eyepiece, or ocular lens, is a type of lens that is attached to a variety of optical devices such as telescopes and microscopes. It is so named because it is usually the lens that is closest to the eye when someone looks through the device. The objective lens or mirror collects light and brings it to focus creating an image.