zeiss made 50mm/0.7 for 35 mm cameras before
所在版块：摄影旅游 发贴时间：2009-05-21 02:04

用户信息
复制本帖HTML代码
高亮: 今天贴 X 昨天贴 X 前天贴 X 
this is the only general purpose photography lens that i know with F number at 0.7
there are lenses with apertures even larger than F/0.7, they are built for special purposes though
the theoritical limit for lens designed for use in air is around f/0.7
.
欢迎来到华新中文网，踊跃发帖是支持我们的最好方法!

Alone for a while, I've been searching through the dark...
　相关帖子 我要回复↙ ↗回到正文
初学拍人像 － passat 　2009-04-25 12:47 (193 bytes , 1379reads )
please use F2.8... － Kula 　2009-05-18 11:24 (0 bytes , 239reads )
如果是室内照，大光圈不是必要的。 － TPMT 　2009-05-19 18:05 (0 bytes , 251reads )
please use F0.7 － 毒鼠强 　2009-05-19 23:13 (0 bytes , 275reads )
F代表完美程度。。F值越高，说明模特MM越完美。 － iloveyouso 　2009-05-20 01:52 (0 bytes , 304reads )
偶IQ太低，没听懂。 － TPMT 　2009-05-20 02:29 (0 bytes , 248reads )
一定范围下，光圈越小细节表现越清晰。。。。。。 － 毒鼠强 　2009-05-20 06:45 (0 bytes , 296reads )
negative...be aware of diffraction － Billion 　2009-05-21 01:54 (49 bytes , 295reads )
一定范围下（人像头的表现范围下） － 毒鼠强 　2009-05-21 22:32 (0 bytes , 245reads )
Agree. － TPMT 　2009-05-21 01:59 (0 bytes , 232reads )
你这理论哪里来的？从没听过。BTW，哪个镜头能有F0.7？我是井底蛙，闻所未闻。 － TPMT 　2009-05-20 23:24 (0 bytes , 293reads )
it is the direct interpenetration － 毒鼠强 　2009-05-21 22:38 (132 bytes , 234reads )
pefectiveness, correction － 毒鼠强 　2009-05-21 22:44 (0 bytes , 239reads )
perfectiveness － 毒鼠强 　2009-05-21 22:53 (0 bytes , 219reads )
zeiss made 50mm/0.7 for 35 mm cameras before － Billion 　2009-05-21 02:04 (252 bytes , 493reads )
do not forget there are oil and glycerol lenses － 毒鼠强 　2009-05-21 22:32 (0 bytes , 239reads )
对自己要求要高点，交作业不能敷衍啊，呵呵 － 鱼片粥 　2009-04-30 08:12 (18 bytes , 331reads )
那里买相机，价位，信誉比较好？ － kewave 　2009-04-29 18:49 (82 bytes , 402reads )
上花鼓励～～：） － TPMT 　2009-04-25 13:08 (305 bytes , 342reads )