今天发现一只很奇怪的镜头，美能达 TELE ROKKOR-QF 25CM 4

cdhunter

一直看到的介绍都是美能达长焦只有200和300两个焦段，250则是那只5.6的折返头

这只就很奇怪了，应该是跟AUTO基本同时代或者更早的ROKKOR镜头，标注的还是25CM，前置预设光圈

很重，但是根本查不到资料啊，好奇怪，这只编号是1100239，估计生产的数量也很有限吧

sunny9494

15 May, 1959

- Tele Rokkor-QF 250/4 [6/4] (ø77mm) 3m f/22 82x230mm 1.400g

A very rare low-production lens, it falls in between 200 and 300 mm, so it was quickly replaced by those lenses. This is a very large and heavy lens, with a pre-set diaphragm. All lenses over 200mm, until the rubber grip series of late 1972, have the focal length inscribed in centimetres. Thus this lens is 25cm, the 300/4,5 is 30cm, the 1.000/6,3 mirror is 100cm, and so on.确实，这个镜头的生产量不大。1959年的老镜头，4组6片，滤镜77mm，尺寸为直径82mmx长度230mm，重量达到1.4kg。最近拍摄距离3米，最小光圈f22.

cdhunter

sunny9494 发表于 2017-6-14 18:55
15 May, 1959

- Tele Rokkor-QF 250/4 [6/4] (ø77mm) 3m f/22 82x230mm 1.400g

谢谢，EBYE上查到一只，编号270，估计这个镜头产量不大