1、首先，用软毛刷把表面和缝隙里的灰尘清扫干净。2、接着，用气吹把表面和缝隙里的灰尘吹掉。3、打开镜头前盖，镜头朝下，气吹朝上吹，把镜头表面的灰尘吹干净。4、镜头底部朝下，气吹朝上吹，把底部的灰尘吹掉[详细]
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