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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。
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% T- @# e5 O; V; B4 S3 s# aAnyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:
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: {! H% S# X8 i( g8 S ]1 Y1) 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.: |0 H" ~2 h0 ]7 \, ~' z( h/ F
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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.( d: {, D# _1 T# v; H8 b! Y3 Q
7 p1 g; T' T6 O; K3) The f/4 is lighter and smaller. Winner f/4.3 p2 E# @% e3 p6 i/ M( c$ l
* z" V# X% r+ F" X8 ^( T% Q4) The wider aperture of the f/2.8 can offer more creative possibilities, especially when taking portraits. Winner: f/2.8.; ~2 R6 v" @4 F
5 z* k- e2 |6 p/ f5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
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