Studio : Alstar Publisher : Alstar Binding : Electronics Product Description 2" Barlow inserts between the eyepiece and a 2" eyepiece holder on the telescope and increases the magnification by 2.5x. It can be used with 1.25" eyepiece and 2" eyepieces. The 4-element fully multicoated lens assembly offers superb field flatness and minimal chromatic aberration. 0
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