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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:2 @9 v6 q a( S5 v+ Q: Q! Y
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F4 IS Vs. F2.8 non IS, 贴过来大家都评论评论。6 \( ^9 b6 e: z+ m6 A$ s6 M+ W' F
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2 f( d0 ?1 E& F0 f. i6 e4 u9 [: UAnyhow, 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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* _9 p* p9 I& U: q* b y! o2) 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.& H: U! f) A& z! z$ O! c3 y1 [
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3) The f/4 is lighter and smaller. Winner f/4.& O. e( s$ B# t2 I
1 s+ {3 I9 g6 b/ ?: g4) The wider aperture of the f/2.8 can offer more creative possibilities, especially when taking portraits. Winner: f/2.8. b/ c. E: P0 c1 k, S, A- W
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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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