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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:
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F4 IS Vs. F2.8 non IS, 贴过来大家都评论评论。0 m/ i* E/ A2 J& f7 y5 m1 o
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Anyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:
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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.
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2 i' t- V: c' p$ z$ c) F; g2) 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/2.8.7 k) D- Z0 I3 C; t. c# m! x8 ~
6 a/ l8 b6 ^* N3) The f/4 is lighter and smaller. Winner f/4.- f& f$ y* ~& Z5 X8 i- p2 u: [
, ]- \( {! X4 n7 ~* z k4) The wider aperture of the f/2.8 can offer more creative possibilities, especially when taking portraits. Winner: f/2.8.! c( m# p; I5 E7 ?5 X, {
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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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