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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:4 Y" C- F- U9 T- E+ x! Y
0 V( o8 D) S0 z. M( BF4 IS Vs. F2.8 non IS, 贴过来大家都评论评论。
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: m ~+ ?1 @- e& o2 I; b! w6 U/ G5 `Anyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:$ x) K" O! j( {$ U6 @
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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/4.3 h7 C6 q* X! i2 F# Q, i
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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.! s6 j M6 I& j+ R
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3) The f/4 is lighter and smaller. Winner f/4.
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, b% {: H E# s1 X8 O# 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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: o3 t0 n2 V" J# ]6 ^$ B% E; b6 I5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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