Unverified85% confidenceDecision RuleTime unknown
扫描底片/胶片必须选带透扫单元（TPU）的专业照片扫描仪，光学分辨率需≥4800dpi，普通平板扫描仪扫底片会严重糊
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Unverified扫描老照片/画作/胶片选平板式扫描仪，光学分辨率需≥2400dpi；扫描135胶片/底片则需要带透扫（LED透射光源）的机型，普通反射式扫不了底片89% similarUnverified扫描照片/艺术品需平板式扫描仪且光学分辨率≥1200dpi，馈纸式扫描仪无法扫装订书籍和易损老照片81% similarUnverified扫描照片/胶片/艺术品选平板式（flatbed）光学分辨率≥1200DPI，扫底片需专用透扫机型达2400DPI以上；ADF馈纸式扫描仪光学分辨率通常仅600DPI，且滚轮易在照片表面留下划痕80% similarUnverified工业级平板扫描仪或鼓式扫描仪可达到4800 DPI乃至更高分辨率，色彩深度支持48位（16位/通道）76% similarUnverified文档存档扫描分辨率300dpi足够，若需扫描含小字体的合同、发票或用于放大印刷则需600dpi及以上；1200dpi主要用于照片/老底片翻拍75% similar
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