全金属玩具......好几年才凑到介个成色......自拍器是杂牌......还在搜索中......

秋高气爽，正好可以锻炼身体啊。

Chnepal 节日快乐！谢谢分享你的宝贝。 我还没玩过这类精密仪器呢。看起来很漂亮，精密啊。

全铝的壳子+全手动掀盖装片+比较精密的激光唱机胆功放一体机

感觉手动虽然麻烦点，但是可靠。另一台唱机除了不出仓之外没别的毛病，但是没办法用了。

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老熊，别的都不重要。一定要吃好，睡好，玩好（精密仪器）！

深紫外激光自旋分辨/角分辨激光光电子能谱谱仪部分。

这是件什么物件？

祝K兄节日快乐并狂吃中、足睡中、继续精密仪器中！

相当优雅秀气的春蕾表。可靠的SS7芯。

美观大方的东风牌手表。

少见的上海7120型手表。

谢谢帮顶。有时间也亮亮你的那些漂亮的老国产表啊？

不知道这款表常见不？

顶一下 本帖最后由 alaldeng 于 2013-9-22 15:44 编辑

1960 年代的东风日历手表。海鸥表厂最早的日历手表。

精密仪器。

老熊，节日快乐！祝合家团圆，身体健康，心情愉快！

那是某种仪器上的一个镜片啊。据说非常精密啊。

啥物件儿？？？

够精密啊。

“Great minds discuss ideas; average minds discuss events; small minds discuss people.” Eleanor Roosevelt

和K兄一张：外销版

早期尼康单反相机。很结实耐用。

一种国产制版镜头。80 年代生产。

谢谢分享！ 都是值得收藏的品种。

开山鼻祖和巅峰之作

http://club.china.com/data/thread/1013/2756/80/12/6_1.html

看来好像在光学产品上还是取得了一些进步啊。 呵呵。

作为集成电路的生产中使用的硅晶片随后越来越大，光掩模的大小也增加，有必要与拍摄范围为30-40毫米的透镜。随着电路也日益小型化，需要更高的分辨率。由于高的分辨率和宽广的拍摄范围之间有一个权衡，尼康选择瞄准受限的拍摄范围和高分辨率。

因此，“连拍”的方法，使电子电路模式分为狭窄的领域，这是单独拍摄。相反，排着队在一个很宽的区域，大量的电子电路图案被称为“同时拍摄”的方法他们都在拍摄一气呵成。

1964年11月，尼康完成了超微尼克尔29.5毫米f/1.2镜头，顺序拍摄的镜头，能够解决射击场内直径2毫米1260线。在当时，这代表了最高的分辨率水平在世界上的任何镜头。胁先生也导致这个镜头，采用全新的光学设计，包括功能，例如，一个多层防反射涂层的发展。

使用这种镜头，※※教授照相减少330页文本的小说“查泰莱夫人的情人”的一天（约12.5平方毫米）10日元邮票的大小。然后，他进一步表明，它是可以放大这部电影的原始文本的大小，并获得与原来相同的分辨率。他的研究结果发表在摄影和光谱光学会议在东京和京都，在那里他们获得了极大的反响，这是1964年9月举行。日刊工业新闻社，公司，工业在日本的报纸，镜头被选为十佳1964年的新产品之一，1965年4月被授予胁先生，在其发展中所涉及的其他总干事奖由当时的日本科学技术厅。

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As the silicon wafers used in the production of ICs subsequently grew larger, photomasks also increased in size, and there was a need for lenses with a shooting range of 30-40 mm. As circuitry was also increasingly miniaturized, even higher resolution was required. Since there is a trade-off between high resolution and a wide shooting range, Nikon opted to aim for a restricted shooting range and high resolution.

Thus, a "sequential shooting" method was employed, whereby the pattern for the electronic circuitry was divided into narrow areas, which were photographed individually. Conversely, lining up a large number of electronic circuit patterns within a wide area and photographing them all in one go was known as a "simultaneous shooting" method.

In November 1964, Nikon completed the Ultra Micro-NIKKOR 29.5mm f/1.2, a sequential-shooting lens capable of resolving 1260 lines within a shooting range 2 millimeters in diameter. At the time, this represented the highest level of resolution for any lens in the world. Mr. Wakimoto also led the development of this lens, which employed a new optical design that included features such as a multilayer anti-reflective coating.

Using this lens, Professor Koana photographically reduced the 330-page text of the novel Lady Chatterley's Lover to the size of a 10-yen postage stamp of the day (approximately 12.5 mm square). He then further demonstrated that it was possible to enlarge this film back to the size of the original text and obtain the same resolution as that of the original. His results were presented at the Conference on Photographic and Spectroscopic Optics, which was held in September 1964 in Tokyo and Kyoto, where they received a tremendous response. The lens was selected by the Nikkan Kogyo Shimbun, Ltd., an industrial newspaper in Japan, as one of its Ten Best New Products of 1964, and in April 1965 Mr. Wakimoto and others involved in its development were awarded the Director-General's Prize by the then Science and Technology Agency of Japan.

应该用做工艺品的精雕细琢的精神来做这些精密机械产品。日本人能做好，就不信中国人做不好。

K兄，我多年前在临床拍显微摄影时见过奥林帕斯的设备真是极其精细，当时手边的海鸥跟它一比简直是不堪入目——都忙着打倒走资派呐！
与海鸥DF同时代的产品——