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:; \4 P$ X& g" Z5 k
. ` f4 W% `- `" b" \
F4 IS Vs. F2.8 non IS, 贴过来大家都评论评论。
- t) X) l7 [, _) y
/ s3 E) g4 m+ i* k7 l**********************************
6 v- W! B* J# m ?7 [+ e5 }$ J- u* dAnyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:
0 g x# [) {( U7 M; L
+ [6 U* _4 ?/ l n: [! ]9 y) l1 n6 j1) 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 q% n1 x0 Z( N
( c9 Z8 h D* D: j& \
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; ?9 ? P! p! N; o
* m. E A; m' M; p0 ?# z- n8 L3) The f/4 is lighter and smaller. Winner f/4.3 Z% A! D. w2 a6 `" L
/ C/ c5 y8 {% h# g$ W( c( \4) The wider aperture of the f/2.8 can offer more creative possibilities, especially when taking portraits. Winner: f/2.8.
2 n" Y5 A7 P2 Y9 c+ y; L; V4 V3 y8 Y* x( p) z8 q) C/ ^$ `6 M4 x ~! Y
5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
|