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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。1 |- w, G' d& d5 q0 y8 Z
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Anyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:
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: `" ^( D8 F5 i$ H' y( w1 N5 q T4 O1) 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.% w& r1 }& a2 B2 T
6 _6 Q. [- d) i8 t* K, {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/2.8.0 d& U5 t' }8 }" \+ [
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3) The f/4 is lighter and smaller. Winner f/4.7 g' e4 N0 K& P1 W
. z6 z9 o! s( t+ P4) 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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5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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