Alstar 1.25 Inch Plossl Telescope Eyepiece - 17mm Fully Multicoated Optical Lens for 1.25inch Astronomic Telescope and Astronomy Filters - 4 Element

Alstar 1.25 Inch Plossl Telescope Eyepiece - 17mm Fully Multicoated Optical Lens for 1.25inch Astronomic Telescope and Astronomy Filters - 4 Element

1.25 inch Telescope Eyepiece: Threaded for standard 1.25 inch astronomy filters telescopes and telescope accessories highly compatible Fully-Multicoated Achromatic Design: Featuring a 4-element Plossl optical design with an approximate 50-degree AFOV, perfect for broad field lunar observations; medium sized star clusters; provide a wide range of cloudy nebulas and deep sky targets Wide Field of View : 1.25 Inch 17 mm plossl eyepiece offers a wide field of view and long eye relief ideal for high-precision astronomical observations Comfortable Fold-Down Rubber Eyeguard: Equipped with a fold-down rubber eyeguard, it provides comfort during extended observation sessions Premium Material: Advanced materials and exquisite craftsmanship making products sturdy and long-lasting use;coming with sturdy plastic dust caps-protect the eyepiece from dust and moisture This is a very nice medium power eyepiece set. 1.25- inch 17mm plossl eyepiece set , gives the widest viewing field along with extra sharpness and long eye relief. 4-element plossl design, has a approx 50- degree AFOV. Perfect for broad-field lunar observations, medium-sized star clusters, and a wide range of cloudy nebulas and deep-sky targets. Comes with sturdy plastic dust caps-protect the eyepiece from dust and moisture. Soft rubber eye guard that's custom fitted with a bayonet mount. Threaded for standard 1.25- inch astronomy filters and barlow lens.