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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:/ I, o* ^8 |9 M7 B" h) n
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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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/ X. F. M, `0 Q- m8 i/ TAnyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:0 |5 ^6 w' P; m, v" p
. m p+ x) H) V1 V. ~! t3 I. [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." r( \& n* j' u& u
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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.% [# D% Z/ B; x
8 W3 e/ k0 c1 e: H$ u2 U) d% T3) 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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# p' a3 d6 o9 _% ]& g5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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