- 6-Element design using extra low dispersion (ED) glass on highly curved elements Fully Multi-Coated
- 55 degree apparent Field of View 20mm eye relief Soft Rubber Rolldown Eyecups
- Parafocal - Little or no focusing adjustment needed when switching from a low power eyepiece to a high power eyepiece
- More than 25mm of clear aperture
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Product Description
The 21mm medium power X-Cel eyepiece is 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.
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