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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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& v: v; E9 \* eAnyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:8 N! b# Q5 T0 A% @* r( R
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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 J7 A: g( \0 Y/ v& r( ]6 ~
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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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3) The f/4 is lighter and smaller. Winner f/4.& G% s# V5 V" I0 k- K* d
+ I4 S0 U, e% \5 Q1 N0 Q4) The wider aperture of the f/2.8 can offer more creative possibilities, especially when taking portraits. Winner: f/2.8.* ?' Q3 r0 s# h% q7 q/ F: q
9 m* B: h5 z% _5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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