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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。
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- Y& f, A! c9 y U. H3 BAnyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:: d, v2 k/ z t" A3 Z
* ^" g$ `0 y9 `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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9 t) }" z" |; z9 a8 B8 ~" m2) 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/4.3 B! X1 x* C; s* r3 D/ J+ J& ~- ^
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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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! K( e( h( x& }. \; t1 A/ h4 s( p5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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