SVBONY SV135 1.25” Zoom Eyepiece, Zoom 7 to 21mm Telescope Eyepiece 5 Element 3 Group, Telescope Accessories for Astronomic Telescopes Visual Planetary Nebula

One eyepiece for multiple uses; this 7-21mm zoom eyepiece allows you to change magnification power without swapping out eyepieces; can be used to view the lunar surface; planets; nebulae; star clusters. 5-elements 3-groups lens structure; 5-elements 3-groups made of high index glass deliver sharp; high contrast vistas; get bright and true image colors. 36°-52° field of view; SV135 zoom eyepiece allows you to see different wide field of view under the same viewing conditions. 13-14mm eye relief; with rubber eyecup; provides comfortable long term viewing for people with or without glasses. Standard 1.25-inch eyepiece; compatible with 1.25-inch telescopes and accessories; groove anti-drop design; effectively prevents accidental falling during use. Tip: For smooth zooming, there is a gap between the zoom components of the zoom eyepiece. Therefore, noise from shaking is normal and does not affect use.