Difference between revisions of "NKS"

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'''NKS''' was the name of a leaf shutter mounted on some Japanese cameras of the 1950s. Various Japanese sources indicate (for example [http://homepage1.nifty.com/fukucame/taronu.htm this page by K.Fukushi] or [http://rd2h-ari.hp.infoseek.co.jp/JA_MIDDL_120A_PIC.htm this page at Japan Family Camera]) that it was made by [[Nippon Kōsokki]] Kōgyō K.K. (日本光測機工業株式会社), that also made the [[Taron]] cameras.
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{{Flickr_image
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|image_source= http://www.flickr.com/photos/heritagefutures/5522538044/in/pool-camerawiki/
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|image= http://farm6.staticflickr.com/5013/5522538044_3c41b57bff_m.jpg
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|image_align= right
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|image_text= NKS-TOKIO shutter face (on a Mamiya Six II)
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|image_by= Dirk HR Spennemann
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|image_rights=  with permission
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}}
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'''NKS''' is a brand of shutters that were made in the 1940s and 1950s by the Japanese company [[Taron|Nippon Kōsokki]]<REF> ''Shunkan o torae-tsuzukeru shattā-ten'', p.19. See also [http://fukucame.fan.coocan.jp/taronu.htm this page by K.Fukushi] or [https://web.archive.org/web/20040906102608/http://rd2h-ari.hp.infoseek.co.jp/JA_MIDDL_120A_PIC.htm this page at Japan Family Camera] (archived). </REF>, which also made the [[Taron|Taron cameras]], and mounted on various Japanese cameras.
  
The usual NKS shutter had B-1-200 speeds. According to [http://www.kyphoto.com/classics/forum/messages/674/2041.html?1124942539 a post] by someone who dismantled one, it was a copy of the [[Prontor II]]. There was a variant called '''NKS-FB''' with B-1-300 speeds, and another variant called '''NKS-SC'''.
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The original NKS shutter is a copy of the [[Prontor II]].<REF> According to [http://www.kyphoto.com/classics/forum/messages/674/2041.html?1124942539 a post] by someone who dismantled one. </REF> It appeared in 1940 with B, 1–200 speeds.<REF> ''Shunkan o torae-tsuzukeru shattā-ten'', p.19. </REF> Both ''NKS-TOKIO'' and ''NKS TOKYO'' markings have been observed on the speed rim of wartime cameras, with T, B, 1–200 speeds.
  
On some wartime cameras there is a T-B-1-200 shutter marked ''NKS-TOKIO'', it is probably an early variant, and Tokio is probably an alternative writing for Tokyo. A ''NKS TOKYO'' marking has also been observed.
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Production was resumed after the war, and later variants are the '''NKS-FB''' with B, 1–300 speeds, and the '''NKS-SC'''.
  
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== Camera list ==
 
Here is an incomplete list of cameras equipped with a NKS shutter (it was not necessarily the only type of shutter available on these models):
 
Here is an incomplete list of cameras equipped with a NKS shutter (it was not necessarily the only type of shutter available on these models):
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* [[Akumiflex]]
 
* [[Amiflex]]
 
* [[Amiflex]]
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* [[Angel Six]]
 
* [[Atom Six]]
 
* [[Atom Six]]
 
* [[Beautyflex]]
 
* [[Beautyflex]]
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* [[Carl Six]]
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* [[Toyoca B35, Chest 35 and Pigeon 35 V|Chest 35]] (NKS or NKS-SL)
 
* [[Daido Six]]
 
* [[Daido Six]]
 
* [[Elmoflex]]
 
* [[Elmoflex]]
* [[Gelto]] (''NKS TOKYO'' marking)
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* [[Gelto]] (NKS TOKYO, NKS or NKS-TB)
 
* [[Gnoflex]]
 
* [[Gnoflex]]
 
* [[Malcaflex]]
 
* [[Malcaflex]]
* [[Mamiya Six]] (''NKS-TOKIO'' marking)
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* [[Mamiya Six]] (NKS–TOKIO)
 
* [[Middl 120-A]]
 
* [[Middl 120-A]]
 
* [[Mihama Six]]
 
* [[Mihama Six]]
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* [[MIL-O|Milo 35]] made by [[Taiyōdō]] and distributed by [[Miller Outcalt]]
 
* [[Mizuho Six]]
 
* [[Mizuho Six]]
 
* [[Monade Flex]]
 
* [[Monade Flex]]
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* [[Ofuna Six]]
 
* [[Pigeon 35]] (B-10-200)
 
* [[Pigeon 35]] (B-10-200)
 
* [[Pigeonflex]]
 
* [[Pigeonflex]]
* [[Roico]] later variant (''NKS-TOKIO'' marking)
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* [[Roico]] (''NKS–TOKIO'' marking)
* [[Sunflex]]
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* [[Semi Mihama]]
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* [[Sharpflex Model S]]
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* [[Silverflex|Silverflex Model S]]
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* [[Sunflex IV]]
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* [[Taroflex]] (''NKS–TOKIO'' marking)
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* [[Taron 35]] (NKS-MX)
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* [[Toyoca B35, Chest 35 and Pigeon 35 V|Toyoca B35]] (NKS or NKS-SL)
 
* [[Toyocaflex]]
 
* [[Toyocaflex]]
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* [[Yashima Flex]] (NKS-TB)
 
* [[Zenobia|Zenobia P]]
 
* [[Zenobia|Zenobia P]]
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== Notes ==
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<references />
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== Bibliography ==
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* ''Kamera no mekanizumu sono I: "Hai! Chīzu" Shunkan o torae-tsuzukeru shattā-ten'' (カメラのメカニズム・そのⅠ・「ハイ!チーズ」瞬間をとらえ続けるシャッター展, Camera mechanism, part 1 "Cheese!" Exhibition of instant taking shutters). Tokyo: JCII Camera Museum, 2002. (Exhibition catalogue, no ISBN number)
  
 
== Links ==
 
== Links ==
 
In English:
 
In English:
* [http://www.kyphoto.com/classics/forum/messages/674/2041.html?1124942539 A post about the NKS shutter] at the [http://www.kyphoto.com/classics/forum/messages/board-topics.html Classic Camera Repair Forum]
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* [https://kyp.hauslendale.com/classics/forum/messages/6901/2041.html A post about the NKS shutter] at the [https://kyp.hauslendale.com/cgi-bin/forum/discus.cgi?pg=topics Classic Camera Repair Forum]
In Japanese:
 
* [http://oozusi.hp.infoseek.co.jp/page017.html Tubasaflex Junior and Silverflex] at [http://oozusi.hp.infoseek.co.jp/ Oozusi's Ricohflex website], the last pictures show an opened NKS B, 10&ndash;200.
 
  
 
[[Category: Leaf shutters]]
 
[[Category: Leaf shutters]]
 
[[Category: Japanese shutters]]
 
[[Category: Japanese shutters]]

Latest revision as of 22:47, 18 January 2024

NKS is a brand of shutters that were made in the 1940s and 1950s by the Japanese company Nippon Kōsokki[1], which also made the Taron cameras, and mounted on various Japanese cameras.

The original NKS shutter is a copy of the Prontor II.[2] It appeared in 1940 with B, 1–200 speeds.[3] Both NKS-TOKIO and NKS TOKYO markings have been observed on the speed rim of wartime cameras, with T, B, 1–200 speeds.

Production was resumed after the war, and later variants are the NKS-FB with B, 1–300 speeds, and the NKS-SC.

Camera list

Here is an incomplete list of cameras equipped with a NKS shutter (it was not necessarily the only type of shutter available on these models):

Notes

  1. Shunkan o torae-tsuzukeru shattā-ten, p.19. See also this page by K.Fukushi or this page at Japan Family Camera (archived).
  2. According to a post by someone who dismantled one.
  3. Shunkan o torae-tsuzukeru shattā-ten, p.19.

Bibliography

  • Kamera no mekanizumu sono I: "Hai! Chīzu" Shunkan o torae-tsuzukeru shattā-ten (カメラのメカニズム・そのⅠ・「ハイ!チーズ」瞬間をとらえ続けるシャッター展, Camera mechanism, part 1 "Cheese!" Exhibition of instant taking shutters). Tokyo: JCII Camera Museum, 2002. (Exhibition catalogue, no ISBN number)

Links

In English: