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How do lens manufactures reduce lens flare and ghosting problems with their lenses?

April 26, 2017flare ghosting Lens lenses manufactures problems reduce

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How do lens manufactures reduce lens flare and ghosting problems with their lenses?

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To reduce flare and ghosts, manufacturers coat lens surfaces with a multiple-layer anti-reflective coating. When lenses scatter less light, image quality is improved because they are sharper and have better contrast.