noun
a type of lens designed to bring two wavelengths of light to a common focus, eliminating chromatic aberration
adjective
describing the type of lens that is achromatic
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The achromatic lens is designed to minimize chromatic aberration in optical systems.
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I just got a new camera with an achromatic lens for better image quality.
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This achromatic lens is like magic for taking clear photos.
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Using an achromatic lens is like seeing the world in high definition.