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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F4 IS Vs. F2.8 non IS, 贴过来大家都评论评论。 K9 A+ m' X1 w
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% d5 P+ d; K" N4 p6 m8 N3 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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/ _8 X% T j; s5 }2) 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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5 S3 e3 B: `8 f, l; ?$ m! ?3) The f/4 is lighter and smaller. Winner f/4.3 Z2 {1 k9 e' K4 x
6 n; h, r9 e; Z, D; _& R8 v: n4) The wider aperture of the f/2.8 can offer more creative possibilities, especially when taking portraits. Winner: f/2.8.- [9 D1 Q5 K5 y" M
6 }6 s0 B+ d3 o- j5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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