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← HistoryWhich focusing outcome occurs in early magnifying lenses when significant spherical aberration exists?
A)Blurring at the image edge✓
B)Chromatic dispersion is corrected
C)Perfect point-like focus forms
D)Diffraction effects are enhanced
💡 Explanation
Blurring at the image edge results when using early magnifying lenses, because spherical aberration causes rays to focus at different points rather than a single, crisp focal point; therefore image quality degrades, rather than achieving ideal imagery at focus through aberration correction.
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