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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。2 n" c, p3 S# `1 {
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W9 X d$ W( C. v- oAnyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:
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; u8 W2 _$ Y5 H. ^: X3 @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 S3 @9 y; H* g7 Q2) 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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6 F9 y5 ~ {7 e; S: q7 v' o3) The f/4 is lighter and smaller. Winner f/4.: @+ ~: x) E% f% x; D4 M
# ~5 f# ~) ]7 V+ Z+ ]& B4) 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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+ M, `: D; u( J) w) _5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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