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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:7 R* N/ T. P5 H J4 v/ P
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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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7 m+ s4 p" ~4 {9 PAnyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:
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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/4.1 S7 C5 \ M' }8 X7 z
$ Z) u }. I$ t4 S2) 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.. x2 v. ^, |' R% b2 H
9 Q: k- H- f2 m1 H1 \) x8 g3) The f/4 is lighter and smaller. Winner f/4.- N" k3 V8 I- F. ~* o& B
& e( w: c3 O5 l# N `7 w4) The wider aperture of the f/2.8 can offer more creative possibilities, especially when taking portraits. Winner: f/2.8.8 b! u8 o* ^+ e, ]7 M
" {0 N5 M! N: {5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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