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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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) |, w3 y t% a$ ?$ Q; eAnyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:+ ?; E4 E4 v* b- u) n1 A( W+ M/ q
, p: [+ K1 c7 Z; z3 c" `+ o4 E8 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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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.
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* b6 t& Y' }0 F7 }3 J& Q3) The f/4 is lighter and smaller. Winner f/4.) p9 G) G% s3 }4 Q1 M8 ~+ A
! Q- ?2 r# S! \/ B4 I. Q: u3 z5 R4) 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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% o) l) @' |$ f. K K0 Z* k5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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