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旧 Jun 18th, 2007, 12:13     #30
william06
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作者: taihe 查看帖子
我那天想了此法来着,不过周边环境不是太黑,怕晃来晃去比机器晃得更虚。
另外B门是啥,能不能用点通俗易懂...
B门就是刚才说的Bulb的方式控制快门,英文叫Bulb Exposure
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