April 24, 2024
Celestron Telescope Eye Piece X-Cel - 21mm - Unused
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Celestron X-Cel 21mm Eyepiece Unused Purchased in March 2012 with good intentions but never gor round to using it. Finances dictate sale Celestron X-Cel Eyepieces If you are looking for an eyepiece that excels for planetary viewing, then Celestron’s X-Cel offers the unique features you need. A 6-element fully multi-coated optical design, the X-Cel utilizes extra low dispersion (ED) glass on its most highly curved surfaces, to minimize chromatic aberration that can hinder sharp planetary views. With a wide 55° apparent field of view, and a large 25mm clear aperture the X-Cel is one of the most comfortable eyepieces to use. Every X-Cel eyepiece is parfocal with each other, meaning little or no focusing is needed when changing from low to high power. The X-Cel comes with soft rubber eyecups and a durable plastic case. In addition, if you are wear glasses, you will enjoy the 20mm eye relief available on each of the X-Cel focal lengths. Threaded barrels accept 1-1/4" Celestron thread-in filters. 21mm X-Cel 55-degree apparent field 20mm eye relief 31.7mm barrel
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