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摄影师 John Cimon Warburg 利用“Autochrome”技术拍摄的19世纪早期彩色照片。
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“Autochrome”又称“天然彩色相片”技术，它主要是把染有红、蓝、绿的土豆淀粉颗粒镀在玻璃上，作为彩色滤镜使用。与黑白摄影相比，天然彩色技术拍摄照片需要更长的曝光时间，最终的影像则会出现轻微的颗粒沉淀物，这让照片如梦幻般美丽。
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