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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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. U5 I- o& k. S/ H& Q% R3 N, J$ X1 h) KF4 IS Vs. F2.8 non IS, 贴过来大家都评论评论。# i8 `3 D, L0 l4 B
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+ K/ m/ o' F" x: r% ~- q2 h* O6 bAnyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:* h* M) [, N6 b" O
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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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4 d; F9 v6 B: }& F4 ?6 K( _0 O2) 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) The f/4 is lighter and smaller. Winner f/4.
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h+ g2 K( M/ Q4) The wider aperture of the f/2.8 can offer more creative possibilities, especially when taking portraits. Winner: f/2.8.: A; Q; X% G/ ?
: G9 Y9 ?& G1 B1 O5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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