 鲜花( 21)  鸡蛋( 0)
|

楼主 |
发表于 2010-10-5 20:41
|
显示全部楼层
正好刚看到一个类似的问题在别的英文论坛:
. p) S9 b# ^+ z2 R7 c" [
' o6 V0 w, R! }F4 IS Vs. F2.8 non IS, 贴过来大家都评论评论。
- I( w4 _' e/ q; V3 V9 W& G8 n$ ~
3 m \: e& w! P**********************************
& c) F K6 K* \, N3 r" r' {, M! v* lAnyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:* \ f( p2 I" ]' G8 i
! r% x) \6 \' Z( v0 _3 P
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.
5 V) f6 }! j7 Y* v
C$ S! `6 _1 T1 h( v) L- D8 B2) 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.
4 T4 g4 \' ~/ J; p, @+ x
& }" K8 M$ t7 L: l; k3) The f/4 is lighter and smaller. Winner f/4.# I( |. a# N0 `
+ Y% Y* r( l$ A/ q* ]- @/ O0 K
4) The wider aperture of the f/2.8 can offer more creative possibilities, especially when taking portraits. Winner: f/2.8.
1 p3 X- ~$ y0 z( J0 ]! P8 j4 k( P# }8 G
5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
|