The 2-group 4- element Plossl series eyepieces offer flat and clear images with good color correction. The NPL20, NPL25, NPL30 and NPL40 eyepieces feature a twist-up eye cup.
Feb 20, 2017
A Goldilocks EyepiecePros: Cons: Comments:
This eyepiece has just the right combination of eye relief, magnification and exit pupil for f/5 to f/10 scopes. It gives very good views through 80mm and 100mm refractors and 130mm Newtonian. It also works well with a 2x Barlow.
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|Apparent Field of View||50°|
|Barrel Size||1.25" (31.7mm)|
|Bolt Case Included||Yes - Free Agena Eyepiece Container|
|Bolt Case Size||Agena 52x80mm|
|Eye Relief by Design||15mm|
|Eyepiece Focal Length||15.1mm - 20mm|
|Eyepiece Field of View||Up to 50 degrees|
|Eyepiece Series||Vixen NPL|
|Barrel Type||With safety undercut|
|Filter Threads||Standard 1.25" Filter Thread (M28.5 x 0.6)|
|Eyepiece Weight||3.88oz (110.00g)|