Kowa TE-10Z 20x, ZOOM Eyepiece

This high-performance zoom eyepiece has 10 lens elements in 6 groups and uses an aspherical lens to increase the field of view, which has traditionally been a drawback of zoom eyepieces. This design ensures a wide field of view through the entire zoom range and a flat field all the way to the edge of the lens. The newly developed optical design reduces the deterioration of the image at high magnifications.