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发表于 2011-1-10 05:07:40
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有点孤陋寡闻,什么是stop filter? 查了一些wiki,好像说是audio处理的一个过程。 ...
袜贩 发表于 2011-1-10 03:21
"A B&W 67mm #110 Neutral Density 3.0 Filter has several uses and offers the possibility to achieve otherwise unachievable results. ND filters appear gray and reduce the amount of light reaching the film. They have no effect on color balance.
Neutral Density filters enable the shooter to adjust exposure without affecting color balance. ND filters appear gray and reduce the amount of light reaching the film. Neutral density filters are available in 1, 2, 3, or 4 stops to suit individual situations."
From http://www.bhphotovideo.com/c/pr ... eutral_Density.html |
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