Feature:1. Standard Interface: The eyepiece has a standard 0.965in interface, compatible with most astronomical telescopes, and easy to install and remove.2. 15mm Focal Length: The generous 15mm focal length provides a comfortable viewing distance, ideal for viewing landscapes, bright celestial observations, nebulae and more.3. Full Coated Green Film: The eyepiece lens is coated with FMC green film, showing high definition picture, enhancing light transmittance and color reproduction.4. Outstanding Performance: Premium telescope eyepiece can deliver more clearer images and bring distant scenes right in front of you with stable performance.5. High Quality Material: The telescope eyepiece body is made of high quality aluminum alloy, which is sturdy and durable, has a long service life, and is not easily deformed or damaged.Specification:Item Type: Telescope EyepieceMaterial: Aluminum Alloy + Optical GlassOptical Structure: SR TypeFocal Length: Approx. 15mm/0.59in Interface Size: Approx. 24.5mm/0.965inLens Coating: FMC Green.Package List:1 xTelescope Eyepiece