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Does a 1.25" eyepiece not use as much of the objective lens as a 2"
eyepiece? All tubes have a focal length at which there is a focused image. If a smaller eyepiece captures less of this focal plane than a larger eyepiece then there is loss. I'm no lens expert but it seems that a larger eyepiece would capture more of the focal plane. A smaller eyepiece wastes some of the focal plane. Is this true or does a smaller eyepiece use as much of the objective lens as a larger eyepiece? Thanks for your help. |
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