有玩 50 cron 50纪念版本的么？
看到有关50 cron各个版本的讨论，钛版都提到了，为什么没有50 J呢。

个人认为这个头非常的特别，现代的设计，最近对焦距离0.7m。外形复古，像rigid，但是有没infinity lock, 对焦行程比rigid， DR短。

[2011-04-12 11:34 补充如下]

Here's what Erwin Puts has to say about it:

The 50 year Summicron version
Optically this version is identical to the current version, introduced in 1979. (Generation 4). I compared a Summicron #3650186 ( my own) with a Special Edition #3952197 and on the bench they performed identically. Optically the current Summicron can still claim to be the world's best 50mm lens. This is not the same as saying that the Summicron 50mm is the best lens in the world. it is a very versatile lens, that performs very well in close up and infinity settings and at intermediate distances and at every aperture. You can use it without reservation at f2 and 70cm and can expect excellent quality. In some conditions, especially when you take pictures against a large, very clear sky, that functions as a large soft box, you can see some flare (hot spots) in the middle of the image.

A comparison of the mount shows that the SE version has a different mount. The standard Summicron has an inner and an outer mount (helix) that both move relative to each other. In the new mount there are the same helix constructs, but now two pins fix and guide the movement.
The SE version has a very smooth and even movement and its mechanical engineering is of a very high level. As example: the infinity setting (collimator check) has an official tolerance of 0.02mm. This tolerance is often exceeded by Voigtlander and Konica lenses and to be honest, sometimes a Leica lens is close to the limit. The Summicron Rigids I tested had indeed tolerances that could be mesured in a few hundreds of a mm. The SE version was within 0.003mm of the norm. That is 3 thousands of a mm and so a factor of 10 better than previous versions.

There will be of course a debate whether the Rigid version or the SE version is mechanically the best: for choice of material and accuracy of machining the SE wins. But the deep satin glow of the Rigid finish has its own attraction.

The current Summicron offers performance that exceeds the capabilities of most users. The SE version adds a retrolook and will fit the MP seamlessly. On my M7 the SE looks very good and has some elegance the normal version lacks.

@恩恩inTX ，请问这个50 summicron纪念版的重量和长度有吗？谢谢！

您好，请问这个纪念版的镜头重量和长度分别是多少啊？谢谢！

赖我没说清楚。。

我的意思是Rigid可以凑活用infinity lock来当对焦扳手：）

刚开始拿到手觉得别扭（八妹也是），拍两卷就好了，远比没有扳手要强多了，个人观点哈。

对焦环一样啊，无穷远锁定，是没有。

无穷远锁定，用着不方便，所以起来的都取消了这个锁定。

敢情

你不是说没有infinity lock吗？

BP看起来太sexy了，就是摸都没有摸过

那这个跟rigid的一样啊，对焦行程还短，方便

还有Rigid可以勉强凑合，呵呵。

哦，那就没有选择了，只有最新版本前的一版了。

是挺好看的：）
MPclassic带的那个BP的也不错

是呀，月牙形的。

俺是用不管现行版summicron那种没有对焦扳手的。。

确实！
不过我自己用很喜欢， 买了之后rigid出了。50cron各个版本除了缩头其他我都用过，最喜欢这个。
有五六十年代经典的设计和做工。还有最近0.7m的最近对焦距离（这个对我来说很有用，个人习惯）

就是披着Rg皮的现代版，呵呵，有点不伦不类

价格如何？

上张图

你是说突出的手柄么？没有的
就是环状，手感很好。24

这个头有对焦把手吗？