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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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9 i$ L9 ~2 R( w' k: EF4 IS Vs. F2.8 non IS, 贴过来大家都评论评论。
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8 q0 ~( v3 j4 {9 ~7 j* B3 pAnyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:: W" W2 o; U# G2 j1 X
0 F$ |4 v0 X* T1) 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) 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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3 s5 V, h9 O9 |8 C3) 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. J/ s1 u- U7 n% R
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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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