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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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Anyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:- G3 G" V" Z$ H" b" ]; c: i
. ^4 z, y- S- n/ K; b @4 \: S1) 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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% y- G( U3 m! V, ^5 H3 I% }0 G! `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/2.8.5 P# g' K. _6 C# C
( L, f- _; K2 b" Y0 q/ W3) The f/4 is lighter and smaller. Winner f/4.
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7 Q% a$ A& I9 A: Z R f5 z0 e4) 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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