鲜花( 21) 鸡蛋( 0)
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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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; o- p% H8 O: K3 LF4 IS Vs. F2.8 non IS, 贴过来大家都评论评论。- P$ X7 m3 R. ?2 `$ ]" I
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) k2 y( O7 X6 O% d& \0 GAnyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:
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# z" S7 z9 t6 }1 P; c1) 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/4.1 \2 o" i$ M: G
4 N) | U& t, E4 n% K, j W2) 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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0 S; Z8 B$ v5 x, A3) The f/4 is lighter and smaller. Winner f/4., v: L! }/ P$ ?( n
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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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5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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