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Aspherical surfaceAn Aspherical lens surface possesses more than one radius of curvature, which allows for the correction of lens aberrations that are common in simpler lens designs. Sharper definition toward the edges [..]
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Aspherical surfaceA lens surface with more than one radius of curvature (i.e., the surface does not form part of a sphere). The aspherical elements of a lens help compensate for many lens aberrations common in simpler [..]
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Aspherical surfacelens surface with more than one radius of curvature, i.e. the surface does not form part of a sphere.
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