可以带着块黑的厚卡纸折起来放包里用来遮挡杂光镜头盖也有这个功效
You can take a thick piece of black cardstock, fold it up and put it in your bag to cover the heterobeam lens head. It also has this effect
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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