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.
Jan 6, 2011
It's pretty much the only choice.Pros:
Strong Construction,CompactCons: Comments:
This is pretty much the only choice for reticle eyepieces and for finder scopes. And it is only available here. I did purchase another brand a while back that had a flashing feature but it was big, bulky, and broke after first use.
It would be nice for these things to turn off automatically after a few hours of non use. I just can't seem to remember to turn them off and I'm always replacing batteries.
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|Apparent Field of View||55°|
|Barrel Size||1.25" (31.7mm)|
|Bolt Case Included||Yes - Manufacturer Supplied|
|Bolt Case Size||-|
|Eye Lens Diameter||25mm|
|Eye Relief by Design||20mm (0.79")|
|Filter Threads||Standard 1.25" Filter Thread (M28.5 x 0.6)|
|Rubber Eye Guard||Yes|
|Eyepiece Focal Length||15.1mm - 20mm|
|Eyepiece Field of View||51 - 60 degrees|
|Eyepiece Series||Celestron X-Cel|
|Barrel Type||With safety undercut|