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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:/ ]6 ? q' f: Y7 i2 F
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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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" y, ?! E, Q9 \- ?Anyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:
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7 w5 @; K2 }: l& S) b. }- e1) 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/2.8.2 s$ F M+ c. g, o$ L! V
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3) The f/4 is lighter and smaller. Winner f/4.- d. m# ]8 q; X
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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.) ?' a- ^& }$ y, d" w5 l+ {
/ @3 R! B/ H- x- m: e- g& X4 t) I0 t% p5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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