Celestron 1.25" X-Cel Eyepiece - 18mm
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This 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.
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 an eyeglass wearer, you will enjoy the 20mm eye relief available on each of the X-Cel focal lengths.
Threaded barrels accept 1-1/4" thread-in filters.
This 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.
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 an eyeglass wearer, you will enjoy the 20mm eye relief available on each of the X-Cel focal lengths.
Threaded barrels accept 1-1/4" thread-in filters.
| Manufacturer | Celestron |
|---|---|
| Eyepiece Series | X-Cel |
| Focal Length | 18mm |
| Barrel Size | 1.25" (31.7mm) |
| Apparent Field of View (Mfg Specified) | 55° |
| Eye Relief (Designed) | 20mm (0.79") |
| Filter Threads | Standard 1.25" Filter Thread (M28.5 x 0.6) |
| Coatings | Fully Multi-Coated |
| Lens Elements | 6 |
| Barrel Type | With safety undercut |
| Protective Storage Container Included | Yes - Manufacturer Supplied |
| Eye Lens Diameter | 25mm |
| Parfocal | Yes |
| Rubber Eye Guard | Yes |
| Warranty | One Year Limited Manufacturer's Warranty |
This 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.
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 an eyeglass wearer, you will enjoy the 20mm eye relief available on each of the X-Cel focal lengths.
Threaded barrels accept 1-1/4" thread-in filters.
| Manufacturer | Celestron |
|---|---|
| Eyepiece Series | X-Cel |
| Focal Length | 18mm |
| Barrel Size | 1.25" (31.7mm) |
| Apparent Field of View (Mfg Specified) | 55° |
| Eye Relief (Designed) | 20mm (0.79") |
| Filter Threads | Standard 1.25" Filter Thread (M28.5 x 0.6) |
| Coatings | Fully Multi-Coated |
| Lens Elements | 6 |
| Barrel Type | With safety undercut |
| Protective Storage Container Included | Yes - Manufacturer Supplied |
| Eye Lens Diameter | 25mm |
| Parfocal | Yes |
| Rubber Eye Guard | Yes |
| Warranty | One Year Limited Manufacturer's Warranty |