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:" p& R, |6 {7 Z. k3 n$ k1 G
" q. G( n n- y- s" wF4 IS Vs. F2.8 non IS, 贴过来大家都评论评论。
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, r4 p2 z- n w i9 PAnyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:: |. `, L; w. l' E6 b3 p0 J7 w% y
/ S- E# P* P* Y% T' m% ?; G1) 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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3) The f/4 is lighter and smaller. Winner f/4.
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$ o; |2 P) d& O+ E; K4 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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; B9 o1 n6 ^& p' a! M% z& v* M5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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