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Kern 鏡頭列表1950’s
2016年06月09日 光學設計, 攝影情報, 筆記隨想 ⁄ 共 1330字 Comments Off on Kern 鏡頭列表1950’s ⁄ 被围观 719 views+

 

kern的c mount鏡,很多改走後口就可以放上35mm 鏡頭。散景味道很不錯。

尤其有寫macro的那一堆鏡,把c mount改走,就可以cover fullframe相機,好玩得很。

In 1950, Kern-Paillard introduced a new line of lenses with a unique depth of field scale, termed "Visifocus". The Visifocus system consisted of a curved scale, indicated by a series of orange colored dots that appeared or disappeared when the diaphragm scale was stopped up or down. The dots provided a visual reference of the depth of field for different focus settings at each f-stop. Further innovations were made in 1956 with the introduction of the Bolex H-16 Reflex camera. The camera used a beam-splitting prism system to provide reflex viewing by diverting approximately 25% of the light entering the lens into the viewfinder. Although the H-16 Reflex used a standard C mount, the reflex prism (located behind the lens and in front of the film plane) affected the optical correction of lenses of 50mm focal lengths and shorter. Kern-Paillard introduced a line of "RX" mount lenses which were optically corrected for the Reflex camera. During the 1950s, Paillard adopted product codes for accessories and lenses. These were used to identify items for sales, repair and service purposes and seems to have been done away with by the early 60s. For the sake of historical reference, I've listed them below. Many of the same lenses were available in both standard (listed as "St." for all 16mm C mount cameras) and RX mount (For H-16 reflex cameras) and used different product codes. Apart from the letters "RX" appearing on some, they were otherwise identical in appearance.

 

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