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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:3 s, b' L$ T1 C& e% F
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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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Anyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:+ X2 s9 N' D) n1 `
1 K7 I, f6 M/ \5 a3 I1) 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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3 Y. ~4 H* N) p$ `( C& k2) 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.' P. M# R0 Y# \$ ?" }8 ]$ U
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3) The f/4 is lighter and smaller. Winner f/4.
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1 B- W# L: u2 s Y( w: Y+ X) t9 ]4) The wider aperture of the f/2.8 can offer more creative possibilities, especially when taking portraits. Winner: f/2.8.
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9 I0 L5 F" W8 P* `; t5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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