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旧 Jul 4th, 2010, 15:26     #1
hydraulicist
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默认 【求助】请教各位一个对焦的问题

一直以来我都使用单次自动对焦,而且只用中央对焦点(CANON400D), 但是经常发现焦点不实,放狗搜了一下,CANON推荐单次自动对焦
http://www.canon.com.cn/specialsite/...ortrait/8.html
但有篇文章却推荐AL SERVO, 原文见链接中,贴过来都是乱码,请问各位有何高见?
谢谢

http://bbs.eyesvision.cn/thread-3070-1-4.html
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旧 Jul 4th, 2010, 23:10   只看该作者   #2
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默认

不管黑猫白猫,抓到老鼠就是好猫。
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旧 Jul 5th, 2010, 00:07   只看该作者   #3
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默认

现在就是总抓不住啊?各位给小孩子照相时都用什么对焦模式啊? 如何能保证对焦在眼睛的成功率?
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旧 Jul 7th, 2010, 17:02   只看该作者   #4
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默认

单次自动是正确的。比自动伺服好,但也要视不同场景。同时对焦快门操作键要分离,不要重构图。对焦要对嘴唇。再嫩的孩子或者MM嘴唇也有条纹,而且是竖纹,正好吻合400D的对焦模块特性。对眼睛不好,眼睛表面容易反光,像玻璃和不锈钢。不容易准。此外,还要营造反差才能找准。拍摄距离视不同镜头的特性。我觉得镜头都有轻度近视,这是个能力问题,和人有能力大小聪明高低一样。不算质量问题。
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旧 Jul 7th, 2010, 17:57   只看该作者   #5
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默认

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作者: millermin 查看帖子
单次自动是正确的。比自动伺服好,但也要视不同场景。同时对焦快门操作键要分离,不要重构图。对焦要对嘴唇。再嫩的孩子或者MM嘴唇也有条纹,而且是竖纹,正好吻合400D的对焦模块特性。对眼睛不好,眼睛表面容易反光,像玻璃和不锈钢。不容易准。此外,还要营造反差才能找准。拍摄距离视不同镜头的特性。我觉得镜头都...
不重构图, 那必须要用其他的对焦点?我一般用中央对焦点
我好象记得400D除中心外都是一字对焦点,中心是F5.6十字,F2.8一字,回头试试对焦嘴唇,谢谢指教
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旧 Jul 7th, 2010, 17:58   只看该作者   #6
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默认

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作者: hydraulicist 查看帖子
现在就是总抓不住啊?各位给小孩子照相时都用什么对焦模式啊? 如何能保证对焦在眼睛的成功率?
我们有同样的问题
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旧 Jul 7th, 2010, 18:02   只看该作者   #7
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默认

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作者: liszt 查看帖子
我们有同样的问题
嗯嗯,俺有借口,俺的是400D,您都7D,5DII了,就550D也比俺的高好几级了,
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旧 Jul 7th, 2010, 20:10   只看该作者   #8
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默认

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作者: hydraulicist 查看帖子
不重构图, 那必须要用其他的对焦点?我一般用中央对焦点
我好象记得400D除中心外都是一字对焦点,中心是F5.6十字,F2.8一字,回头试试对焦嘴唇,谢谢指教
后期构图。DPP裁图很方便。
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旧 Jul 7th, 2010, 21:00   只看该作者   #9
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默认

我也是一直使用单次自动对焦,光线暗的时候总是合焦很慢

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