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发表于 2010-10-5 20:41
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正好刚看到一个类似的问题在别的英文论坛:, @8 W; P9 S* L4 h5 B
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F4 IS Vs. F2.8 non IS, 贴过来大家都评论评论。
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f" m J. P# T7 X* K2 UAnyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:% g3 A4 z$ A1 D2 E) h/ s
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1) The f/2.8 gives you one extra stop of hand-holding possibility, but at the cost of depth of field, whereas the 4.0 gives you 3 stops of hand-holding possibility at any aperture. Winner: f/4./ B. j# M2 [2 K5 ]
4 _4 T! [# v" `2 K( v! u+ c2) The f/2.8 gives you one extra stop of light in darkened conditions when photographing moving subjects. The f/4 doesn't. Winner: f/2.8.# S; T# V5 ?$ D6 v3 Z
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3) The f/4 is lighter and smaller. Winner f/4.$ z7 x! ]3 a& {1 |
, ]/ Z% S2 }# Y4) The wider aperture of the f/2.8 can offer more creative possibilities, especially when taking portraits. Winner: f/2.8.1 b+ \5 z5 C0 ]7 B1 K7 d! Y
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5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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