Telescope Eyepiece PL40mm 1.25in Green Coated 4 Element with Dust Cap Astronomical Telescope

Feature: 1. SIZE: Standard 1.25 inch astronomical telescope universal eyepiece, can be mounted with standard 1.25 inch astronomical filters and Barlow lens. 2. REFLECTION REDUCTION: The eyepiece features a 4 element optical design. The premium optical lenses minimize internal reflections and maximize contrast. The black coated eyepiece barrel also prevents reflections. 3. WIDE FIELD OF VIEW: The 40mm folding eyepiece has an AFOV of approximately 50 degrees. Provides the widest field of view, superb sharpness and extra long eyepiece distance. 4. ERGONOMIC DESIGN: Comes with a soft eyecup so that the eye can comfortably reach the eyepiece while viewing. Comes with a sturdy plastic lens cap to protect the eyepiece from dust and water. 5. LENS COATING: The eyepiece adopts FMC green film coating technology. This coating technology can effectively reduce reflected light and increase light transmission. Specification: Item Type: Telescope Eyepiece Material: Aluminum, Optical Glass Weight: Approx. 171g 6oz Focal Length: 40mm Apparent Field: Approx. 50 Degrees Interface Specifications: Standard 3.17cm 1.25in Lens Coating: FMC Green Film Number Of Lenses: 2 Group 4 Element Thread Specification: M28.6X0.6mm. Package List: 1 x Telescope Eyepiece2 x Dust Cap (Installed)