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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:/ l$ {. F4 ~4 L: t; ^- x
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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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2 Y9 ]7 P) ] q# d* D9 V9 jAnyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:
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4 I( [5 S# j0 _/ e2 [8 K1) 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/4.7 x# ]- _8 M, t- m* f6 J/ c- ?
, G" P& W8 j' `& u6 z2) 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.+ _+ O1 }" N8 N% Z4 j
' W0 A9 v, r6 f7 ]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.* b. z9 a% X; m" g/ W% n* _
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5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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