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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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F4 IS Vs. F2.8 non IS, 贴过来大家都评论评论。5 O. K/ j5 U3 ^; a: H
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6 a# ~) G- y/ l0 T, G0 W/ ]9 T" z4 wAnyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:! I( ]( H7 Y7 z; y; i6 {
- O! e, {0 X( r' s2 C8 ^$ l1) 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.
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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.
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5 C. o9 A) {5 S4 @3 s3) The f/4 is lighter and smaller. Winner f/4.8 [' B. q5 W2 l- K; Z- i$ c8 L
- k% m' @' e( _) z: x$ 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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7 f. K& `7 ~5 S5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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