鲜花( 21) 鸡蛋( 0)
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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:- a7 @9 l( z9 M ~5 \: C( \8 T
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F4 IS Vs. F2.8 non IS, 贴过来大家都评论评论。" V6 G1 e' r6 v8 j
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% E5 ]% T$ V" l. ZAnyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:
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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.
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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.- R ]9 H6 U9 I# {/ o
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3) The f/4 is lighter and smaller. Winner f/4.
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3 u) y" A/ t1 ^' y4) The wider aperture of the f/2.8 can offer more creative possibilities, especially when taking portraits. Winner: f/2.8.3 N) @9 f e7 ~/ o* o
% h4 ^5 H. p# g5 U0 A9 e5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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