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最近,日本确善能公司推出了一款φ42mm×1mm螺口135单反相机,引起了广大摄影人士的关注。 螺口镜头接口用于135照相机,最早见于1930年面市的徕卡C上的L39螺口。1938年位于德累斯顿的百佳公司率先将螺口用于135单反相机上,但百佳弗莱克斯相机上采用的螺口是φ40mm。1949年面市的、设计有屋脊五棱镜的康泰克斯S及其后续机型,采用了φ42mm×1mm螺口交换镜头。自此,与光学镜头制造技术进步相适应的、有利于制造大口径镜头的φ42螺口便风行起来。1957年前后,
Recently, Japan really good company introduced a φ42mm × 1mm screw 135 SLR camera, causing the majority of photographers attention. The screw-in lens connector was used with the 135 camera, the earliest found on the L39 screw on the Leica C, which was available in 1930. The Pall Corporation, based in Dresden in 1938, pioneered the use of screws for 135 SLR cameras, but the bolt used on the PARKnSHOP FLEX camera was φ40 mm. Introduced in 1949, designed with ridge pentaprism Contacus S and its follow-up models, the use of φ42mm × 1mm screw exchange lens. Since then, the optical lens manufacturing technology to adapt to the progress, is conducive to the manufacture of large-diameter lens φ42 screw port will be popular. Around 1957,