The eyepieces are parfocal, minimizing the amount of refocusing needed when switching from eyepiece to eyepiece within the series.Īgena Dual ED Eyepieces vs. A great value, these eyepieces are exceptional at nearly eliminating lateral color aberration and light scatter often associated with more expensive eyepieces that are better suited for deep space objects. Featured, Popularity, Newest, Price (High-Low), Price (Low-High), Alphabetical (A-Z). This feature is especially useful for telescopes without tracking capability where the object drifts across the field of view during observation. These 1.25" fully multicoated (FMC) eyepieces give maximum detail and definition across the entire 60 degree field of view (FOV). The 66 degree model is more like the Expanse - which I claim no experience with but do remember some positive Expanse reviews. With a true flat field and two high quality ED glass elements of different glass types, the new Agena StarGuider Dual ED eyepieces are characterized by a significantly high contrast image. The Dual ED is the 60 degree model with the reviews similar optically to the Meade HD-60 and Celestron XCel-LX.
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