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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。! X, t6 h5 `" V5 b+ ~
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/ z; s0 @ ^% x; BAnyhow, 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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- Z, r$ n$ P: C3 Y% @4 @$ B2 x$ L2) 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.
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+ [9 i" i0 t1 V' g$ L9 {% N3) The f/4 is lighter and smaller. Winner f/4./ A' G, v4 m! Y( V: L3 M/ e
. V9 W+ `' S$ p) D" j9 C4) 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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4 _/ w/ X p6 Z+ P* @5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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