1A fully coated optical lens ensures a clear image. 2The focal length is from 8 to 24mm, with extended magnification. 3The cover can protect your eyes from scratches. 4Suitable for standard 31.7mm (1.25in) telescopes. 5Used to observe landscapes and lunar surfaces, planets, fog, star clusters and diffuse fog. High brightness, wide field of vision, keep your eyes in a comfortable state. 6The lens body is made of metal,CNC machining, texture is exquisite, feel comfortable, long service life. Condition: 100% Item Type: Eyepiece Lens Material: Metal + optical glassFocal length: 8~24mm continuous zoomEyepiece: 20mm large eyepieceCoating: multilayer anti-reflection green filmScope of application: astronomical telescopeModel: zoom eyepieceWeight: approx. 168g.w-e-text table td,.w-e-text table th,.wang-edit-text table td, .wang-edit-text table th{border: .5pt solid000;};.w-e-text table,.wang-edit-text table{border: 1px solid000important;}1 x Eyepiece Lens