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:
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F4 IS Vs. F2.8 non IS, 贴过来大家都评论评论。) F5 X! V0 }% Y, b0 A% J+ `
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+ C& l0 P- s5 j3 h! [- h; R& iAnyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:9 l0 Q) c( y [. I
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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.- U: [) C* s& K* _
) T9 e7 m- V0 U) u. t2) 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.) B1 h4 V8 i0 E
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3) The f/4 is lighter and smaller. Winner f/4.
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4) 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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' ^, E# z. W. m" w5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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