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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, Y, m. g3 K9 u2 g& e9 Q6 Y. ZF4 IS Vs. F2.8 non IS, 贴过来大家都评论评论。
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4 f2 t& J) y1 p v' r+ E$ fAnyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:
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: `2 _1 G* b. _) O+ n) K2 H4 G1) 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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: ~2 S/ G7 b3 N* h0 b6 W' ] x2) 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.* N/ l4 {0 x! l" V( L6 i
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3) The f/4 is lighter and smaller. Winner f/4.4 w. v# v/ d5 r9 Q
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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.# p' r1 v% t) y, q( n- ]) K
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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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