About this product
Part Number: TKA00611
An updated version of Takahashi's 28mm Erfle eyepiece.
Features the original 5-element / 3-group design with improved anti-reflection coatings to minimise flare and ghosting.
Provides a flat field across the full 60°apparent field of view, which is close to the maximum field the eye can accept. (You can see the entire field without tilting your neck to see in the corners).
When used with the Takahashi FC-60CB, the 28mm Erfle provides 12.6x magnification.
Parfocal (little or no need to refocus when changing eyepieces) with Takahashi's Abbe Orthoscopics.
Focal length: 28mm
Eye relief: 20mm
Apparent field of view: 60°
Barrel diameter: 31.8mm (1.25")
|Average Rating (1 Review): |Takahashi's wide field eyepiece
Monday, 30 July 2018 | Richard
Not many Erfle eyepieces labelled as such anymore.
Thus Takahashi 28mm 60 degree is their widest AFOV model. It has a niche of its own.
Not as sharp as the 45 degree 32mm Abbe Orthoscopic, but to me better than a 30mm LE model.
Best usable eye relief of any Takahashi eyepiece, due to the eye lens being near the top of its mounting barrel. Slightly better than a Tele Vue Plossl for eye comfort , and equivalent to a Baader Eudiascopic 35mm in my experience.
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