Celestron 18mm X-Cel Series Eyepiece 1-1.25"
The 18mm 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" Celestron thread-in filters.
|Name||Celestron - 18mm X-Cel Eyepiece - 1.25"|
|Custom Stock Status||In Stock|
|Angular Field of View||55º|
|Eyepiece Apparent FOV||55|
|Eyepiece Apparent FOV2||0|
|Eyepiece Barrel Size||1.25"|
|Eyepiece Eye Relief||20|
|Eyepiece Eye Relief 2||0|
|Eyepiece Field Stop||0.0|
|Eyepiece Focal Length||18.0|
|Eyepiece Focal Length2||0.0|
|Focal Length||18 mm (0.71 in)|
|No. of Elements||6|
|Size||1.25 in (31.75 mm)|