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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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: |5 Q, k2 O; W% ZF4 IS Vs. F2.8 non IS, 贴过来大家都评论评论。
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Anyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:4 a! R3 J( C$ E' A
9 p; _+ ?1 E9 n8 [- Z" Y+ k) ~" 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.
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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.! s! Q5 b! d/ t [& ?4 o' V" \
5 I7 k6 ~3 k/ r p7 g) ^1 w3) The f/4 is lighter and smaller. Winner f/4.
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" k$ x( A. `+ j1 u3 d4) 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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! i/ w7 a# }( s; m3 R$ C5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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