我给同志们放俩截图。大家意思意思就好了，反正也看不清楚。
CP.2 vs schneider cine xenar
25mm

http://www.filmaker.cn/bbs/viewthread.php?tid=5918&extra=page%3D1
5楼
（施耐德CINE-XENAR人民币 ）38000一只

我近来越来越YY大直径镜片的镜头了，冥冥中总觉得像cooke S4i 40mm这种直径的，要比cooke S4i 50mm感觉好。当然超广交那端则更需更大的直径。

蔡司镜头纵剖观赏
http://www.filmaker.cn/bbs/viewthread.php?tid=6029&extra=page%3D1

这是三个被纵剖的蔡司镜头，分别是CP.2 28mm/T2.1 PL，Makro-Planar T* 100mm/2.0 ZE，Planar T* 85mm/1.4 ZE。
从光学结构上看，CP.2的通光量的确不大，但机械结构比ZE要复杂得多。这也反映了电影镜头在光学设计上比照相镜头顾及的层面更多，除了成像方面的考虑，还要考虑诸如跟焦过程中镜头的机械变化，系列镜头的体积差异对云台平衡和遮光斗位置的影响等等。

还是这个能看明白
T1.4时候的就这么牛了，快赶上莱卡M90AA f4上下了。

[JLC 编辑于 2011-02-16 08:46]

前面的Leica C 100/1.4
我把原廠MTF轉成一般格式
設定是可見光,全開,無限遠

原廠原定成像半徑只有到14
也就是直徑28mm的APSC畫幅
最新的電影鏡用這規格值得思考

http://matthewduclos.wordpress.com/2010/09/10/cine-zoom-comparo-france-vs-england/

Cine Zoom Comparo: France vs. England
The Cooke 20-100mm is a workhorse of a zoom lens. It’s solid build quality combined with classic “Cooke Look” glass make it a very desirable lens in the current HD market. The other option is to drop a pretty penny on a stellar new Angenieux 24-290mm. The current champion of motion picture zoom lenses. These two cinema zoom lenses are decades apart and even farther apart in cost. An average Cooke 20-100mm costs a mere $7,000 compared to the going rate for a new Angenieux 24-290mm at around $63,000. A little background on these still samples. These were shot with a 35mm full frame 5D which means the vignetting is severe and expected. The settings were the same for each lens, 100mm at T4, ISO 100, 5100K color temp etc. Here are the samples

现在非常痛苦的一件事是，没有找到cooke 5/i的镜头图片，看不到镜头第一片镜片的大小和最后一片镜片的大小。panchro/i图片也就那么可怜的2张。

http://www.fxguide.com/featured/Shooting_with_RED/

我暂时还没惦记CP.2 100，也就算个托底的，实在没得买了在考虑它，现在主要在研究cooke 5/i。

价格比捷行的贵多了，估计也是在那拿的货，既然JLC前辈很向往CP.2 100/2，问问什么价吧 跟50微应该一样价，再加上遮光罩就很拉风了

昨天在五棵松汇丰问了问CP.2，已经卖了，没有现货现在，卖的了三只是21 85，还有一个貌似是50，忘了。行货不开票3万整一只。

发现一个事情，panchro/i 18mm好像没提供螺丝口滤镜接口，25mm和32mm图片不清楚，100mm和50mm应该有，图片挺清楚。75mm，没有照片。具体情况大家自己找图片或者去厂家/经销商问吧。
http://www.flickr.com/photos/14492185@N00/sets/72157625725216465/with/5366536992/

谁知道panchro/i 50mm的最近对焦距离是多少？550mm还是500mm？
谁知道panchro/i 32mm的最近对焦距离是多少？300mm还是350mm？

[JLC 编辑于 2011-02-11 17:13]

终于体会了一把什么叫Specifications subject to change
cooke 镜头的参数真是千变万化，早一版的panchro/i的相圈说是30mm，后来改成33.54mm了，5/i的镜头长度有一版是117mm，后来改成177mm了（看来是手哆嗦错位置了），弄得我还空欢喜一场。拿着尺子比划了一下直径大约120mm，177mm长，加上机身，结论是：我摄影包太小，放不下。

刚又发现，panchro/i 18mm的身世更是迷奇，一会说重量是1.3公斤，一会是1.4公斤，一会又改成2.1公斤了，前口直径一版是87mm，一版是110mm，似乎每得到一个cooke的参数表就会有新的发现。也没有埋怨cooke的意思，告诉大家想知道cooke的具体参数要对照图片和多组数据具体分析。就昨天我从cooke官网下载的参数表里，panchro/i 18mm的重量是最轻的，1.3公斤，可我怎么看图片怎么也不像呀？就他最大最粗，2.1公斤的我个人觉得靠铺。

[JLC 编辑于 2011-02-11 17:09]

哈苏V系列多半一直是Arri 765的配套头，只不过现在不见得能卖了。

/showthread.php?threadid=671082
第38贴
http://www.visual-memory.co.uk/sk/ac/len/page1.htm
哈苏的50/0.7还客串了一把电影头。

一不小心看到了一点C口老电影头的相圈和丁点测试，也放进来吧。
http://forum.getdpi.com/forum/showthread.php?t=6025&page=2
http://spreadsheets.google.com/pub?key=p9kkgjwEQQQ-HJwvNDobeEw

难道CXX变形巨大？不至于吧，把房子透视都搞变了，再变形也不应该改变透视呀。

那段英文没太看明白，难道是说CXX把空间搞弯曲了？
http://www.dvxuser.com/V6/showthread.php?234707-Cookies-Cookie-Cook-and-Cooke

Results:
For the reputation Cooke has, I went into the test optimistically. When I took a look at the results, my expectations were surpassed. To put it simply, the Cooke Panchro/i's almost exactly matched the S4/i's. I didn't think two completely different sets of lenses would match as if they were the same. But that is what Cooke went out to do when designing the smaller Panchro/i's and that is basically what they did.

Under heavy examination, (clicking back and forth between two 4k 16bit .tiff images in rapid succession) I found the S4's had an almost undetectable amount of extra contrast... I really only noticed it in the darkest darks. The largest discrepancy between any of the lenses was the Cooke CXX. The zoom lens was warmer than the matching Panchro/i and S4/i lenses. It wasn't horrible, but enough that if I wanted perfection and wanted to avoid a costly DI session to hunt all the CXX footage down, I would make a very small compensation in camera. My $.02.

Out of the Panchro/i range, the 25, 32, 50, 75, 100 are exactly color matched to each other. However, the 100mm Panchro/i is a nano-bit more warm than the rest, noticeable perhaps only at the most scrutinized examination. Within the Panchro/i set, the 5-set mentioned above is matched, no doubt. However the 18mm was a bit different. Although the 18mm Panchro/i is very close to the others, it was noticeably warmer in comparison. I'm not sure if it would be enough that anyone would notice, but if being juxtaposed multiple times to the other focal lengths, and I was aiming for perfection in-camera, I might consider bumping the CT a couple of points. The 18mm Panchro/i is certainly not as warm as the CXX zoom, but was the greatest inconsistency between any of the Cooke Panchro/i and Cooke S4/i lenses had to each other. With that said, if that was the biggest issue, it's really a non-issue. Take a look at the Panchro/i 18mm compared to the other focal lengths in the Panchro/i set in the FoV chart. The FoV chart is actually made up from all the Panchro screen grabs. They are simply resized and stacked upon each other. You can see how warm the 18mm is, and how close all the other primes are to each other in the Panchro/i set. The 18mm is the only lens in the set that stands out as not being almost exact to the others. I think knowing this, a bump perhaps of 300*k might clear this up. I didn't test how much it would take, but it's not terribly much.

18mm Panchro/i v. 18mm CXX:
The CXX zoom lens does not have lines accompanying the focal lengths on the barrel, so I got the lens centered on the 18mm focal length engraved number, and that was that. Getting the CXX on 18mm the best I could, it should be mentioned that it was not as wide as the 18mm Panchro/i prime. The 18mm Panchro/i is warmer than it's fellow Panchro/i brothers, but still is not as warm as the CXX. The way the room was rendered as far as perspective is almost exactly the same between the two lenses. However despite FoV being similar between CXX 25mm and 32mm compared to the Panchro/i's, the distortion of how the room is rendered changes. The Panchro/i's will render a more realistic 'flat' field, while the CXX makes the room look a little deeper because the sides continue to have a small warp. It's not aweful, but there is a difference. However, the 18mm lenses match. The CXX is warm compared to the S4/i and Panchro/i's, but since the 18mm Panchro/i is a warm too (but not as much) the warmth is best seen in the 25mm or 35mm panchro/i comparison.

25mm/32mm Panchro/i v. 25mm/32mm CXX:
The 25mm/35mm Panchro/i falls inline with the rest of the Panchro/i series and S4/i primes in regards of color rendition. Thus it is easier to see the Cxx warmth in these checkered images. I also noticed a small discrepancy between how they portray depth and the field. The edges of the CXX seem to be 'closer' while the middle seems to recede. The Panchro/i creates a realistic flat field, while the CXX has a slightly more three dimensional feel from some image barreling. The very edges of the screen seem to 'stretch' around the lens. I would probably have never noticed it without direct comparison to primes. Download the 25/32cxx and 25/32panchro and toggle them back and forth in some sort of picture viewer. It's quite interesting.

50mm/75mm Panchro/i v. 50mm/75mm S4/i:
It was the 50mm and 75mm Panchro/i vs. S4/i comparisons that really blew my mind. If I hadn't taken so much care labeling the digital frame grabs, I would have easily lost track of which was which. These lenses are completely interchangeable and even under demanding scrutiny, the differences will probably escape the trained eye. The only way I could see a difference was by toggling between two 16bit 4k .tiff images over and over. I eventually began to see the S4/i's possessed a small bit of additional contrast, and the Cooke Panchro's had maybe a nano-bit of warmness? I still am not sure if that is true or if I'm just trying to see things. Regardless, these lenses are so close to each other, their tolerances are probably equal to the tolerances between two lenses of the same set and same focal length. Perfect match.

100mm Panchro/i v. 100mm S4/i:
The Panchro/i 100mm and S4/i 100mm are very closely matched. Not exactly matched, like the 50mm and 75mm demonstrate, but because the Panchro/i 100mm is a very small bit warmer, I must mention it. However, this is nowhere near as warm as the CXX and I don't believe it's far enough to correct for it, even on the smallest level. In fact, I think it's slight enough that it's actually nice. Considering I rarely use the 100mm lens for regular shooting and when I do, it is often for a very long-lens beauty shot, I welcome the little nuance... even if it doesn't comes across on screen.

Conclusion:
It's simply amazing how much the Panchro/i's did compare to the S4/i's. It was much more that I required. The CXX zoom is a fantastic lens, and it's a difficult lens to make being a 15mm-40mm zoom and all. However, it does need to be cooled down in order to match the S4/i and Panchro/i's. Just by a small amount. It also has some barrel effects mostly seen when it's longer focal lengths are compared to the primes. Regarding the Panchro/i and S4/i's, I would not think twice about using these lenses in a two camera shoot, but not just for different units, but even for mother-daughter or cross coverage shooting. The CXX I would probably tell my AC's to make sure they bumped the CT a couple hundred k's when it goes on. Although not to the same degree, the Panchro/i 18mm could use a small bump in CT too, maybe as little as 100 or 200 kelvin from my tests so far. Otherwise, it's all gravy.

***Disclaimer***
By now you have probably noticed how carefully I've been trying to choose my words when describing these findings. The differences I describe are almost all nuances and differences almost unnoticeable by the naked eye. I highly recommend downloading the images which I have taken so much time to compile before interpretations of my words become fact. I tried to be very thorough and detailed, and I don't want people thinking the differences I've mentioned are larger than they are, or smaller than they are. Please take a look for yourselves!

panchro/i 18mm和panchro/i 100mm要比其他的panchro/i更黄调一些，25mm 32mm 50mm 75mm之间和对应的S4i可称super macth。

不好意思啊，刚才贴的，都是S4的，不是S4i的。
给个S4 18的正脸。

S4i 18

panchro/i 18mm可不比S4i 18小，俩人都是110mm的口径，看来这panchro/i 18mm也是挺值得考虑的。这才叫性价比呢。

S4i25

panchro/i 25mm好像小的不是太多。

还是S4i 100大。

panchro/i 100mm

S4i 32

panchro/i 32mm