 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:2 c$ ~8 k" z1 ~* v1 J" ^/ @9 A
% K4 U1 z! M# X- y- K6 N
F4 IS Vs. F2.8 non IS, 贴过来大家都评论评论。
8 z5 O2 Z7 \; u7 V0 C2 o. ]8 a. q
**********************************
: ~! x7 H7 x% w0 N4 c9 s# VAnyhow, you pose a good question - f/4 IS or f/2.8 non IS. Here are the main points:( v# i% e2 C9 j* [3 ?% {8 j
& t+ ? N! X( R; J" v- O6 N0 _
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.
u5 Q& q$ ], d9 } ^# O7 k9 r# R' J+ b. M+ R
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/2.8.1 L# T1 [; C/ D) X' r6 b
" u# ?9 o X5 B0 q
3) The f/4 is lighter and smaller. Winner f/4.
- K6 s8 @& z9 n4 r# h4 ?" U" E; F
1 q) ^" p* W; q4) The wider aperture of the f/2.8 can offer more creative possibilities, especially when taking portraits. Winner: f/2.8.
) g" t- I( V7 a f+ H# M& ]9 ^3 \: c n, [
5) The f/2.8 has better bokeh (creaminess of the blurred areas). Winner: f/2.8. |
|