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旧 May 5th, 2008, 15:30   只看该作者   #21
老总
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作者: william06 查看帖子
那就全套升级吧
你是毒王啊,让俺先看看你是如何中毒的先把。。。
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旧 May 5th, 2008, 15:32   只看该作者   #22
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作者: 老总 查看帖子
你是毒王啊,让俺先看看你是如何中毒的先把。。。
下次俺去问个真正的毒王借点器材,写点全副和1.6X的器材评测

可能会引起画峰的5D热
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旧 May 5th, 2008, 15:39   只看该作者   #23
老总
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作者: william06 查看帖子
下次俺去问个真正的毒王借点器材,写点全副和1.6X的器材评测

可能会引起画峰的5D热
要是你自己不先中毒“声望”,俺就不信
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旧 May 5th, 2008, 15:42   只看该作者   #24
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作者: 老总 查看帖子
要是你自己不先中毒“声望”,俺就不信
俺现在估计已经没救了 争取多拉几个下水
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旧 May 5th, 2008, 15:45   只看该作者   #25
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俺现在估计已经没救了 争取多拉几个下水
那就是说要下手了
不等5d兔啦?
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旧 May 5th, 2008, 15:48   只看该作者   #26
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作者: 老总 查看帖子
那就是说要下手了
不等5d兔啦?
估计今年迟早要下手,至于有没有兔就不知道了
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旧 May 5th, 2008, 15:49   只看该作者   #27
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俺现在估计已经没救了 争取多拉几个下水
俺已经陷在泥坑里动不了了,浑身是泥百毒不侵了。。。
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旧 May 5th, 2008, 15:53   只看该作者   #28
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作者: 老总 查看帖子
俺已经陷在泥坑里动不了了,浑身是泥百毒不侵了。。。
看来拉老总下水是一个challenge,泥坑的全幅可是昂贵无比哦,中一下估计代价不轻
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旧 May 5th, 2008, 20:20   只看该作者   #29
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作者: william06 查看帖子
看来拉老总下水是一个challenge,泥坑的全幅可是昂贵无比哦,中一下估计代价不轻
嘿嘿,这也是陷在泥坑里的好处,中全幅的毒不容易。。。
相比之下C家很狡猾,有f4的L头,还有非Pro的全幅, 想不升级,想不中毒都难。。。
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旧 May 5th, 2008, 20:44   只看该作者   #30
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从同一距离拍摄同一物体,40D+50mm和5D+80mm效果一样,40D+200mm和5D+320mm一样,所以APS-C长焦赚大了,APS-C稍微亏了一点景深。
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旧 May 5th, 2008, 21:43   只看该作者   #31
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不是是税前2876么?就算上mir$200也要2876*1.13-200=3049阿

难道还有其他discount?
如果你是其它省居民,如安省,只收5%税呀。
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旧 May 5th, 2008, 22:54   只看该作者   #32
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如果你是其它省居民,如安省,只收5%税呀。
看来还是俺幸福呀,守着camerastore慢慢看。 中毒败金也比较快一点点。
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旧 May 6th, 2008, 09:46   只看该作者   #33
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作者: 老总 查看帖子
嘿嘿,这也是陷在泥坑里的好处,中全幅的毒不容易。。。
相比之下C家很狡猾,有f4的L头,还有非Pro的全幅, 想不升级,想不中毒都难。。。
还俗吧,万一中了,成本低
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旧 May 6th, 2008, 10:21   只看该作者   #34
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好贴要顶, 终于明白怎么回事了, 看来全幅和非全幅用同样的头站在同样的拍摄距离, 景深是一样的, 相当于非全幅CROP下来一块全幅的图片, 不过这块图片的象素精度比全幅上的画面精度高差不多一倍. 这样理解对不对? 我对文章中提到的信噪比不大清楚, 为什么全幅好?哪位给解释一下.
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旧 May 6th, 2008, 10:33   只看该作者   #35
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好贴要顶, 终于明白怎么回事了, 看来全幅和非全幅用同样的头站在同样的拍摄距离, 景深是一样的, 相当于非全幅CROP下来一块全幅的图片, 不过这块图片的象素精度比全幅上的画面精度高差不多一倍. 这样理解对不对? 我对文章中提到的信噪比不大清楚, 为什么全幅好?哪位给解释一下.
信噪比不能简单以全副非全副来区别,要看具体机器的pixel quality。俺对文中某些论段持保留态度。一般来说,在工艺制作相同的传感器间,信噪比主要看每个pixel的大小。pixel面积越大,信噪比越高,pixel quality也越好。表现在像质上,就是噪点越少,比较明显的是低光处的红绿花点少。
你可以计算一下5D和40D的CMOS单元看看哪个小,虽然40D的sensor比较新,可能有工艺上的改进,但就这么短时间内工艺能够实现的突破是相当有限的,所以可以忽略它们工艺上的差别。

另外,用raw并关掉数字降噪测试,可以验证上述观点。有机会你可以自己测试一下
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旧 May 6th, 2008, 10:39   只看该作者   #36
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还俗吧,万一中了,成本低
出家人好啊,佛主高高在上,够不到,六根便清净,哦弥陀佛~~
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旧 May 6th, 2008, 10:52   只看该作者   #37
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作者: tiezi 查看帖子
好贴要顶, 终于明白怎么回事了, 看来全幅和非全幅用同样的头站在同样的拍摄距离, 景深是一样的, 相当于非全幅CROP下来一块全幅的图片, 不过这块图片的象素精度比全幅上的画面精度高差不多一倍. 这样理解对不对? 我对文章中提到的信噪比不大清楚, 为什么全幅好?哪位给解释一下.
这问题说起来复杂了,密度更大的cmos不见得成像差,像素制作工艺是另一个方面,新款相机的像素更小,但每个像素前面的微透镜做的更大,所以接收光面积并不小,一个例子就是1DsIII比1DsII像素面积小,但接收光面积1DsIII更大。40D和5D的受光面积我不知道,但实际比较中,画质没有差别,前提是你用牛头,比如24-70,70-200和所有L定狗定;但用17-40、16-35和其他狗变,5D画质更好。我想镜头解析力对40D是个瓶颈了。
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旧 May 6th, 2008, 11:25   只看该作者   #38
tiezi
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作者: william06 查看帖子
信噪比不能简单以全副非全副来区别,要看具体机器的pixel quality。俺对文中某些论段持保留态度。一般来说,在工艺制作相同的传感器间,信噪比主要看每个pixel的大小。pixel面积越大,信噪比越高,pixel quality也越好。表现在像质上,就是噪点越少,比较明显的是低光处的红绿花点少。...
原来还有象素大小的差别, 这样说还不能光看象素的多少了.
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旧 May 6th, 2008, 11:34   只看该作者   #39
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作者: DNA 查看帖子
这问题说起来复杂了,密度更大的cmos不见得成像差,像素制作工艺是另一个方面,新款相机的像素更小,但每个像素前面的微透镜做的更大,所以接收光面积并不小,一个例子就是1DsIII比1DsII像素面积小,但接收光面积1DsIII更大。40D和5D的受光面积我不知道,但实际比较中,画质没有差别,前提是你用...
这个解释更全面了, 又出现了像素前面的微透镜, 光看象素大小和密度也是不够的. 看来只有银子说了算了. 不过你最后的解释我非常赞同, 一般的L头用在5D上的效果的确比40D强多了, 这个我在网上看过很多片片的对比.
最后一个问题, 你们感觉用同样的头, 站在同样的拍摄距离, 5D上CROP下来同样大小的片片,与40D拍出来的图片哪个清晰? 景深肯定是5D小, 主体和背景的层次感会好一些. 但是跟40D直接拍下来的片片比,会不会有明显的噪点?
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旧 May 6th, 2008, 11:40   只看该作者   #40
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作者: DNA 查看帖子
这问题说起来复杂了,密度更大的cmos不见得成像差,像素制作工艺是另一个方面,新款相机的像素更小,但每个像素前面的微透镜做的更大,所以接收光面积并不小,一个例子就是1DsIII比1DsII像素面积小,但接收光面积1DsIII更大。40D和5D的受光面积我不知道,但实际比较中,画质没有差别,前提是你用...
这两个是不同代的,工艺技术不同,就不能直接用面积比较了
另外,要比较,你必须用raw,关掉数字降噪。就我所知,40D的降噪算法比5D的先进很多。不信你试试。
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