 鲜花( 21)  鸡蛋( 0)
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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:/ M; h9 t9 P7 A/ y9 O2 F, f7 |$ j
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F4 IS Vs. F2.8 non IS, 贴过来大家都评论评论。. Q* L9 v% _! z5 ^$ q( X% h- \9 p, C
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Anyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:. d0 e& e9 K$ |+ o1 p" v! y
/ }7 j( S+ b8 q8 x1) 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/4.6 P* {- D k3 K D T1 B' H
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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.( Z* n6 V+ g# ?: U# z, P
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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.: \) c' b; _5 a
3 h) S$ R4 j$ R+ R/ u) }- G5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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