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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:- g$ s' e+ _3 g2 N2 ^
6 X& t+ a7 I. I. BF4 IS Vs. F2.8 non IS, 贴过来大家都评论评论。8 S: e1 z8 N; G1 v1 I% N) j, M, R
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0 B. o# T, \ P+ ZAnyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:
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2 b8 W ^& E1 r5 i1) 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.. ?$ c) A# L$ m/ ]
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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.: G4 H9 O# o5 h* |' c- q( U0 w
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3) 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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- a$ y/ z* U% U* C; F5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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