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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:0 E; M# J7 ^0 u" Y8 [$ ]' E
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F4 IS Vs. F2.8 non IS, 贴过来大家都评论评论。4 k9 C) |/ R$ E$ D
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Anyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:
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: q3 N7 F: E, t) \5 Q7 a; i% g1) 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.! O" j" T* X$ v! _) K0 r+ _
8 B i l, k& ?( g2) 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.( ^9 r+ x. ^. G
0 t5 C7 s6 z5 Z3) 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.' Y& I, g8 ~5 {- n% U3 j s$ U3 @
. k6 D9 S4 { m* s S5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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