Unverified90% confidenceCautionTime unknown
外置镜头本质是在手机原有镜头前叠加一组光学元件，光路经过两套系统，理论画质上限低于手机直出，只有在追求特殊虚化/长焦/超广角效果时才值得添加
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90%
Confidence
Long-term
Relevance
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