1913年——徠卡 1927

1913 – German optical engineer Oskar Barnack ( 1879 – 1936), head of development at Leitz, made a prototype compact camera and introduced  35mm film. Named ‘Lecia’, it was put into production in 1925 after further developments. His 35 mm design helped introduce the concept of exposing a small area of film to create a negative, then enlarging the image in a darkroom.

1913年——德國光學工程師OskarBarnack（1879-1936）是萊茨的開發主管，他制作了一個輕便相機原型，并引進了35毫米膠片。經過進一步的研發，于1925年投入生產，名為“徠卡”。它的35毫米設計有助于引入曝光一小塊膠片以產生底片的概念，然后在暗室中放大圖像。