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前民主德国1948年发表屋脊五棱镜万能取景器的康太克斯S型单镜头反光照相机(CONTAX S),使取景器所观景像与原物一样,消除了取景视差,对焦更加精确而闻名于世。20世纪60年代民主德国产品基本都是专业的潘太康牌(Pentacon)中画幅、普拉蒂卡牌(又称百佳Praktica)小画幅单镜头
Former Democratic Germany In 1948, the CONTAX S, a penthouse universal viewfinder, made the viewfinder look like the original, eliminating viewfinder parallax and focusing more precisely world. In the 1960s, the products of German Democracy were basically professional Pentacon medium format, Pratacar (also known as PARKnSHOP Praktica) small format single lens