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. | ||
+ | {{Flickr_image | ||
+ | |image_source= http://www.flickr.com/photos/bergheil/5845605220/in/pool-camerawiki/ | ||
+ | |image= http://farm4.staticflickr.com/3261/5845605220_2c2e9b3bc5_n.jpg | ||
+ | |image_align= right | ||
+ | |image_text= old style Koilos shutter on [[Alpin]] | ||
+ | |image_by= Kazutaka Tsutsui | ||
+ | |image_rights= (C) | ||
+ | }} | ||
=== Cameras equipped === | === Cameras equipped === | ||
− | * [[Murer | + | * [[Murer's Express]] |
* [[Idea A|Pocket Idea A1]] (1911) | * [[Idea A|Pocket Idea A1]] (1911) | ||
* [[Lily (original)|Lily]] (1909–11) | * [[Lily (original)|Lily]] (1909–11) | ||
* [[Noble|Noble]] | * [[Noble|Noble]] | ||
* [[Pearl (for plates and rollfilm)|Pearl No.4]] (1911) | * [[Pearl (for plates and rollfilm)|Pearl No.4]] (1911) | ||
+ | * [[Alpin]] | ||
+ | |||
+ | {{br}} | ||
== Later Koilos == | == Later Koilos == | ||
{| class="plainlinks floatright" width=240px style="text-align: center;" | {| class="plainlinks floatright" width=240px style="text-align: center;" | ||
− | || [ | + | || [https://www.flickr.com/photos/camerawiki/48984531687/in/pool-camerawiki https://live.staticflickr.com/65535/48984531687_e446b8ce16_m_d.jpg] |
|- | |- | ||
|| ''Koilos shutter on a [[Nifca and Molta plate folders|Lomax]]. Picture courtesy of eBayer hbpartner. {{with permission}}'' | || ''Koilos shutter on a [[Nifca and Molta plate folders|Lomax]]. Picture courtesy of eBayer hbpartner. {{with permission}}'' |
Latest revision as of 06:16, 30 October 2019
Contents
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.
old style Koilos shutter on Alpin image by Kazutaka Tsutsui (Image rights) |
Cameras equipped
- Murer's Express
- Pocket Idea A1 (1911)
- Lily (1909–11)
- Noble
- Pearl No.4 (1911)
- Alpin
Later Koilos
Koilos shutter on a Lomax. Picture courtesy of eBayer hbpartner. (Image rights) |
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:
- Idea (isolated example)
- Nifcarette and Sirius Bebe
- Nifca-Dox
- Sirius and Lomax
- Super and Special Super
- Tokiwa
- Weha
Notes
- ↑ 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
- Awano Mikio (粟野幹男). "Senzen no Minoruta kamera" (戦前のミノルタカメラ, "Prewar Minolta cameras"). Kamera Rebyū: Kurashikku Kamera Senka (カメラレビュー クラシックカメラ専科) / Camera Review: All about Historical Cameras no.12, October 1988. No ISBN number. Minoruta kamera no subete (ミノルタカメラのすべて, special issue on Minolta). Pp.13–17.
Links
In English:
- Shutters - History and Use, an article by Ernest Purdum at largeformatphotography.info with erroneous mentioning of Kenngott as the shutter's maker
In Japanese:
- Unknown plate folder with a Koilos shutter and a Heliostar lens, at the Monomono blog