论文部分内容阅读
ＤＦ型变幅后背易民广宗照相器材厂推出的专利产品一ＤＦ型变幅后背及系列产品，在广大摄影爱好者中受到普遍关注。现将笔者了解的情况和实用体会介绍如下。ＤＦ型变幅后背与海鸥ＤＦ—１系列、ＤＦ—２系列、珠江Ｓ一２０１、华西Ｓ—８０等１３５照相机配套使用，能用１...
DF-type back Yi-ming Guangzong Photographic Equipment Factory introduced a patented product DF-range back and series of products, the majority of photography enthusiasts by the widespread concern. Now I understand the situation and practical experience described below. DF-type variable amplitude back and the seagull DF-1 series, DF-2 series, the Pearl River S-201, Huaxi S-80 and other 135 camera supporting the use of 1 ...