CelticBird Telescope 1.25'' Super Plossl Eyepiece 20mm 4-Element Plossl Design Threaded for Standard 1.25inch Astronomy Filters

The CelticBird 1.25 inch 20mm telescope Plossl eyepiece ideals for all types of reflector telescopes, refractor telescopes and catadioptrics telescopes. It is threaded for use with 1.25" standard telescope eyepiece filters to deep-sky objects such as nebulas and star clusters. This Plossl eyepiece offers a quality 4 element Plossl optical design and approxiamtely 52 degree a field of view (AFOV). The high quality optical lens minimizes internal reflection and maximizes contrast. The blackened eyepiece barrel also prevents reflection. Besides, the eyepiece is fully threaded to minimize reflections. The blackened edges and blackened interior is blackened to reduce scattering of stray light and maximize contrast. It comes with beautiful matte aluminum barrels and blackened lens edges to prevent internal reflections and increase contrast. What's more, the soft rubber eye guard that's custom fitted with a bayonet mount and brings convenience to glasses wearers. Leave them up or fold them down when wearing eyeglasses. The sturdy rubber cap can also proect the eyepiece from dust and moisture.