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旧 Jul 4th, 2011, 14:40   只看该作者   #81
鲁莽电工
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默认

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听电工这个说法, 似乎T2i的图象传感器比T1i加强了不是一点半点
我没有从T1i 到 T2i,而是从XTI到T2i,所以感觉很明显。
本来换代到T2i图的是高清录像功能,结果拍照效果也得到了很好的提升。

**T2i高清摄影的对焦要点:
刚开始使用的时候,不知道这个窍门,拍摄中进行变焦的时候画面就模糊了焦点。经过摸索,我发现,开始拍摄之前就要用最长焦距对焦,开始拍摄后拉近推远就都非常清楚。背后的原理我就不清楚了,反正这么做就可以。

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-GoGoGo- (Jul 4th, 2011)
旧 Jul 4th, 2011, 15:49   只看该作者   #82
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默认

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作者: 鲁莽电工 查看帖子
我没有从T1i 到 T2i,而是从XTI到T2i,所以感觉很明显。
本来换代到T2i图的是高清录像功能,结果拍照效果也得到了很好的提升。

**T2i高清摄影的对焦要点:
刚开始使用的时候,不知道这个窍门,拍摄中进行变焦的时候画面就模糊了焦点。经过摸索,我发现,开始拍摄之前就要用最长焦距对焦...

What kind of manfrotto head do you use? 804rc2 or 49xRC2?
any feedback? Thx
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旧 Jul 4th, 2011, 16:16   只看该作者   #83
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默认

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What kind of manfrotto head do you use? 804rc2 or 49xRC2?
any feedback? Thx
三个把的云台,应该是80?的。效果不错,我觉得它最大的好处就是不用拧太紧也能稳住位置,扳动就能选取画面省掉老去拧把手的麻烦。比球头好,单伟移动不干扰其他维。
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旧 Aug 19th, 2011, 11:27   只看该作者   #84
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Unhappy 请问GoGoGo:

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我主要用腾龙双3X, 17-50/2.8 70-200/2.8, 两三年前$399和$599美元买的
just bought a Tamron 17-50 (A16, non VC version). after couple days of use, i found this lens has a back focus issue. (tested my other lenses on my A33, and they are fine. so the issue is the lens no the camera).

My issue is pretty much similar to this:

http://www.dcresource.com/forums/sho...50mm-SAL50-F14

Is that a big deal?
Does your A16 have any front/back focus issue?

Thanks in advance!
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旧 Aug 19th, 2011, 12:13   只看该作者   #85
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just bought a Tamron 17-50 (A16, non VC version). after couple days of use, i found this lens has a back focus issue. (tested my other lenses on my A3...
no, my A16 (non VC) is just fine, I used to hook it on Sony A200 body, and then A33 body, then A55 body(I gave A33 to my brother as a gift), A16 never have any back focus issue.

我个人感觉啊: A33/A55的软件可能有自动纠正偏焦的功能, 你多拍一些, 看看两百张之后是不是就准了

[仓廪实而知礼节 衣食足而知荣辱]
在苍茫的大海上,狂风卷集着乌云。在乌云和大海之间,流狼像黑色的闪电,在高傲地飞翔......
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旧 Aug 19th, 2011, 12:31   只看该作者   #86
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默认

>>"A33/A55的软件可能有自动纠正偏焦的功能"
can you give me some detail please?

This is my second Tamron lens, My first one is the SP 90 marco, and it is fine.
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旧 Aug 19th, 2011, 12:38   只看该作者   #87
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>>"A33/A55的软件可能有自动纠正偏焦的功能"
can you give me some detail please?

This is my second Tamron lens, My first one is the SP 90 marco, and it is fine....
我也只是这么一瞎猜和瞎说, 我有一个50 1.4, 一开始的几十张总是觉得有偏焦的样子, 好象焦点固定偏前, 然后我就大光圈时候只要有可能干脆就手动对焦了(A33/A55有自动中心放大来辅助手动对焦), 然后某一天发现这镜头自动对焦也不偏了, 再然后就一直到今天都貌似不偏
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旧 Aug 19th, 2011, 12:44   只看该作者   #88
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默认

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我也只是这么一瞎猜和瞎说, 我有一个50 1.4, 一开始的几十张总是觉得有偏焦的样子, 好象焦点固定偏前, 然后我就大光圈时候只要有可能干脆就手动对焦了(A33/A55有自动中心放大来辅助手动对焦), 然后某一天发现这镜头自动对焦也不偏了, 再然后就一直到今天都貌似不偏
CANON某些中高档机身(比如7D,5D2)有微调功能,纠正跑焦问题。SONY也有了?
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旧 Aug 19th, 2011, 12:46   只看该作者   #89
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我也只是这么一瞎猜和瞎说, 我有一个50 1.4, 一开始的几十张总是觉得有偏焦的样子, 好象焦点固定偏前, 然后我就大光圈时候只要有可能干脆就手动对焦了(A33/A55有自动中心放大来辅助手动对焦), 然后某一天发现这镜头自动对焦也不偏了, 再然后就一直到今天都貌似不偏
Thanks.
Good to know, I only use the MF for my marco shoots. I will try it out and let your guys know the result.

How about your A001, this will be my next target
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旧 Aug 19th, 2011, 12:53   只看该作者   #90
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CANON某些中高档机身(比如7D,5D2)有微调功能,纠正跑焦问题。SONY也有了?
A33/A55没有微调

A33/A55有两套对焦系统是一起工作的, 一套相位, 一套对比, 其实我也没搞明白两套对焦如何能一起工作, 或许是对比可以辅助相位的偏焦微调, 也没搞明白为什么我这个SIGMA 50 1.4后来就自己准焦了, 50 1.4本来是借朋友的全新的来玩一下, 结果可能不关机上下镜头, 卡口烧坏了, 花了$50去修了一下, 修过的东西不好意思还给人家, 干脆就留着自用了
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旧 Aug 19th, 2011, 12:59   只看该作者   #91
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How about your A001, this will be my next target
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A01质量没什么问题, 不过我用的机会并不多, 偶尔孩子学校表演什么的才用用, 平时90%的时候就只用A16

A01色彩和锐度都挺好, 要说缺点可能就是对焦慢一点, 不过这个或许跟机身的性能更有关, 据说接在A700 A800 A900上面就飞飞的快啊
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旧 Aug 19th, 2011, 12:59   只看该作者   #92
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Unhappy almost forget,

my copy of tamron A16 also has the famous "腾龙黄", I compared with my kit lens (18-55)
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旧 Aug 19th, 2011, 13:02   只看该作者   #93
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默认

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my copy of tamron A16 also has the famous "腾龙黄"
我的A16貌似没有"腾龙黄"啊

这里的前三张就是我的A55机身+A16镜头: http://www.chinasmile.net/forums/sho...d.php?t=517339

我是直出JPG, 自动白平衡, 一般色彩都挺自然, 并不需要后期再校正白平衡
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旧 Aug 19th, 2011, 18:26   只看该作者   #94
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默认

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我也只是这么一瞎猜和瞎说, 我有一个50 1.4, 一开始的几十张总是觉得有偏焦的样子, 好象焦点固定偏前, 然后我就大光圈时候只要有可能干脆就手动对焦了(A33/A55有自动中心放大来辅助手动对焦), 然后某一天发现这镜头自动对焦也不偏了, 再然后就一直到今天都貌似不偏
这,,,说明,眼神被相机校正了。现在走路会不会偏?

Less is more. Good is miao.
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旧 Aug 20th, 2011, 17:55   只看该作者   #95
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默认

前段时间凑热闹也收了一只腾龙A016,刚刚卖掉了。
A016的锐度确实很好,全焦段2.8可用,F4就纤毫毕现了。据前用户说他拿去腾龙调了一次焦,可见部分产品是会跑焦的,个体差异是存在的。
腾龙的色彩不讨喜,这是我不喜欢的主要原因。户外自然光,A016的白平衡还算马马虎虎,但是和原厂镜以及我手头的几个Sigma头比起来欠油润;室内混合光或者弱光场景,A016的白平衡就死得很难看。即使前期拿白平衡盖矫正后拍摄,依然不是很理想,更不用说后期软件的矫正了。
另外,A016的广角畸变控制也比较一般。
不过,就A016的价格来说,是非常超值的,稍有改善的其它品牌都要超过50%以上的投资,更何况,锐度还不见得能与之匹敌。
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感谢 流浪家族
此篇文章之用户:
-GoGoGo- (Aug 22nd, 2011)
旧 Aug 20th, 2011, 19:56   只看该作者   #96
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默认 Agreed

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前段时间凑热闹也收了一只腾龙A016,刚刚卖掉了。
A016的锐度确实很好,全焦段2.8可用,F4就纤毫毕现了。据前用户说他拿去腾龙调了一次焦,可见部分产品是会跑焦的,个体差异是存在的。
腾龙的色彩不讨喜,这是我不喜欢的主要原因。户外自然光,A016的白平衡还算马马虎虎,但是和原厂镜以及我手头的...
A016的锐度, F2.8, 价格是优势, 还有名气.
缺点是 色彩, CA @17mm, 对焦速度, 准确和成功率.
做工一般.
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旧 Aug 23rd, 2011, 23:31   只看该作者   #97
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Smile

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A33/A55没有微调

A33/A55有两套对焦系统是一起工作的, 一套相位, 一套对比, 其实我也没搞明白两套对焦如何能一起工作, 或许是对比可以辅助相位的偏焦微调, 也没搞明白为什么我这个SIGMA 50 1.4后来就自己准焦了, 50 1.4本来是借朋友的全新的来玩一下, 结果可能不关机...
I'm not quite sure what the issue your sigma lens really is, but please check this link out:
sigma describes the problem with some older lenses being used with SLT cameras:
http://www.sigma-photo.co.jp/english...nfo_100910.htm

also check the compatible mark on your box.
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旧 Aug 25th, 2011, 11:27   只看该作者   #98
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I'm not quite sure what the issue your sigma lens really is, but please check this link out:
sigma describes the problem with some older lenses being ...
对, 我送修的时候, SIGMA维修部的人说会帮我把这个RECALL也一并做了, 省了我的事
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旧 Aug 25th, 2011, 11:34   只看该作者   #99
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默认 New coming sony 16-50mmf2.8SSM

The new lens sony 16-50mmf2.8SSM should be a good fit for A55 too. US is going to sell it for $699 and $799 here.
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旧 Aug 25th, 2011, 11:43   只看该作者   #100
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The new lens sony 16-50mmf2.8SSM should be a good fit for A55 too. US is going to sell it for $699 and $799 here.
what a amazing price!!!

get one from US, save $100 plus the tax!
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