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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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: T3 c$ B+ f$ \5 nF4 IS Vs. F2.8 non IS, 贴过来大家都评论评论。
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. }* s6 h" o- f! Z% TAnyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:5 W- W# V w$ A, }
$ w6 y+ @2 a4 C* L( }$ ^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." B# q- ~; W8 Q$ i, T( L
. r. V, R7 k7 b2) 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./ \" x @( w/ u
/ h0 E0 f0 g$ O v, o3) The f/4 is lighter and smaller. Winner f/4.+ A* U) M8 k; X, b7 k0 d
; x4 }1 y0 y, C* f+ T4) 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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5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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