This medium power Omni eyepiece is a 4 -element premium symmetrical Plossl optical design. Features include blackened lens edges to minimize internal reflection and maximize contrast, multi-layer coating group on each lens surface to maximize light transmission and contrast, and each Omni goes through a two-step anodizing process to prevent reflection from the top eyepiece barrel, unlike most other manufactures who use reflective surfaces. Threaded barrels accept 1-1/4" thread-in filters.
Product carries two-year manufacturer limited warranty (within US/Canada only).
Aug 3, 2011
None for priceComments:
Very nice eyepiece for the money. I bought this to use with an 80mm refractor and 130mm reflector, both f/5, both inexpensive. Good quality medium power eyepiece for my kids to learn with without having to worry too much about the cost of one getting dropped and damaged. It renders sharp views to the edge and works well with a barlow.
Contrary to the specifications, the one I recieved has a barrel security recess, which doesn't bother me.
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|Apparent Field of View||52°|
|Barrel Size||1.25" (31.7mm)|
|Bolt Case Included||Yes - Free Agena Eyepiece Container|
|Bolt Case Size||Agena 42x60mm|
|Eye Relief by Design||8mm (0.31")|
|Filter Threads||Standard 1.25" Filter Thread (M28.5 x 0.6)|
|Rubber Eye Guard||Yes|
|Blackened Lens Edges||Yes|
|Eyepiece Focal Length||10.1mm - 15mm|
|Eyepiece Field of View||51 - 60 degrees|
|Eyepiece Series||Celestron Omni|
|Barrel Type||With safety undercut|