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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。' |5 G3 K$ @5 r: v
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- a* p, E1 e$ b) u* kAnyhow, 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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& T* m, T" Z9 s# 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.
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+ z1 K, A i5 k- N5 |7 D) w: I+ g3) The f/4 is lighter and smaller. Winner f/4.
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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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4 [0 i$ C% @1 b6 n4 o5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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