Difference between revisions of "Koilos"

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The '''Koilos''' is a German three-leaf shutter. It was the first [[leaf shutter]] developed by [[Gauthier]], introduced in 1904. It needed cocking and used a leather brake to regulate speeds.
 
The '''Koilos''' is a German three-leaf shutter. It was the first [[leaf shutter]] developed by [[Gauthier]], introduced in 1904. It needed cocking and used a leather brake to regulate speeds.
  
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{{Flickr_image
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|image_source= http://www.flickr.com/photos/bergheil/5845605220/in/pool-camerawiki/
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|image= http://farm4.staticflickr.com/3261/5845605220_2c2e9b3bc5_n.jpg
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|image_text= old style Koilos shutter on [[Alpin]]
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|image_by= Kazutaka Tsutsui
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=== Cameras equipped ===
 
=== Cameras equipped ===
 
* [[Murer]]'s Express
 
* [[Murer]]'s Express
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* [[Pearl (for plates and rollfilm)|Pearl No.4]] (1911)
 
* [[Pearl (for plates and rollfilm)|Pearl No.4]] (1911)
 
* [[Alpin]]
 
* [[Alpin]]
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== Later Koilos ==
 
== Later Koilos ==

Revision as of 20:35, 19 October 2012

Early Koilos

The Koilos is a German three-leaf shutter. It was the first leaf shutter developed by Gauthier, introduced in 1904. It needed cocking and used a leather brake to regulate speeds.

Cameras equipped


Later Koilos

Various Japanese cameras of the early 1930s are equipped with a different Koilos shutter. This Koilos shutter is everset, and tripped by a lever attached to the front plate. The speeds (25, 50, 100, B, T) are selected by a wheel at the top. There is a thread for a cable release on the side, and a thread and needle release under the lens. This Koilos shutter was perhaps made by Gauthier, but this is unclear.

The Koilos shutter mounted on the Nifca-Dox by Nichidoku (predecessor of Minolta) has a peculiar octagonal casing and slightly different controls. It was perhaps not a genuine imported shutter, and at least one source says that it was "clearly made by the company itself".[1]

Cameras equipped

The fact that a camera is listed here does not imply that all its versions were equipped with a Koilos shutter:

Notes

  1. Awano, p.14 of Kurashikku Kamera Senka no.12: シャッターもコイロス名ではあるが、明らかに自社製と思われるものを取り付け.

Bibliography

Links

In English:

In Japanese: