Difference between revisions of "Light (shutter)"

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(Rosen name variant)
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The '''Light''' is a leaf shutter mounted on some Japanese cameras in the 1930s.
The '''Light''' is a leaf shutter mounted on some Japanese cameras in the 1930s. It was perhaps made by [[Ōhashi|Ōhashi Kōki Seisakusho]], a company which is known to have used this trademark and to have mounted Light shutters on its [[Roll Light Ref]] camera.
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== General description and manufacturer ==
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The front plate of the Light shutters is inscribed ''Light'' at the bottom and ''Patent Pending'' at the top, and has a round ''MB'' logo on the right.<REF> Close-up picture in Inoue, p.130, picture in {{SUG}}, item 1176, and pictures in various advertisements for the cameras mentioned below. </REF> The aperture scale is screwed to the bottom. The speeds are engraved on the moving rim.
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A similar ''MB'' logo appears on the "Tokyo Compur" and "Rapid Compur" made by [[Bikōdō]], and this might indicate that the Light were manufactured by that company. The Light brand name might also indicate a relationship with [[Ōhashi|Ōhashi Kōki Seisakusho]], a company which is known to have used this trademark and to have mounted Light shutters on its [[Roll Light Ref]] camera.
  
 
== Versions and cameras equipped ==
 
== Versions and cameras equipped ==
List of versions:
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Two main models exist, in #0 or #00 size.
* '''Light B''' (5–250, T, B)
 
* '''Light C''' (25, 50, 100, T, B)
 
* '''F Light''' (5–150, T, B)
 
The exact shutter version is not always mentioned in the available documents.
 
  
On the Light B, the shutter plate is inscribed ''Light'' at the bottom and ''Patent Pending'' at the top, with an ''MB'' logo in a circle on the right. The aperture scale is screwed to the bottom. The speeds are engraved on the shutter rim in that order: 5, 10, 25, 50, 100, 250, B, T.<REF> Close-up picture in Inoue, p.130. </REF>
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=== #0 size ===
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The '''#0 size''' model has been observed once, with 25, 50, 100, B, T speeds and a [[thread and needle release]], on a [[Masnette]] plate folder. It is certainly the model advertised on the [[Venus (Seibidō)|Venus FF]] plate folder.
  
List of cameras with a Light shutter:
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=== #00 size ===
* [[Venus (Seibidō)|Venus]] plate folder (Light)
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The '''#00 size''' model exists in at least three versions:
* [[Masnette]] plate folder (Light, 25–100, B, T)
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* '''Light B''' (5, 10, 25, 50, 100, 250, B, T)
* [[Semi Dymos]] (Light or Light B)
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* '''Light C''' (25, 50, 100, B, T)
* [[Hansa Semi Rollette]] (F Light)
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* '''F Light''' (5–150, T, B)
* [[Roll Light Ref]] (Light B and Light C)
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The exact shutter version is not always mentioned in the available documents. Here is a list of cameras with a #00 Light:
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* [[Semi Dymos]] (advertised and observed with a Light B)
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* [[Hansa Semi Rollette]] (advertised with an F Light)
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* [[Roll Light Ref]] (advertised with a Light B and Light C)
 
The Rosen shutter mounted on the [[Semi Rosen]] has the same aspect and features as the Light B, and is certainly a name variant.
 
The Rosen shutter mounted on the [[Semi Rosen]] has the same aspect and features as the Light B, and is certainly a name variant.
  

Revision as of 17:39, 30 June 2009

The Light is a leaf shutter mounted on some Japanese cameras in the 1930s.

General description and manufacturer

The front plate of the Light shutters is inscribed Light at the bottom and Patent Pending at the top, and has a round MB logo on the right.[1] The aperture scale is screwed to the bottom. The speeds are engraved on the moving rim.

A similar MB logo appears on the "Tokyo Compur" and "Rapid Compur" made by Bikōdō, and this might indicate that the Light were manufactured by that company. The Light brand name might also indicate a relationship with Ōhashi Kōki Seisakusho, a company which is known to have used this trademark and to have mounted Light shutters on its Roll Light Ref camera.

Versions and cameras equipped

Two main models exist, in #0 or #00 size.

#0 size

The #0 size model has been observed once, with 25, 50, 100, B, T speeds and a thread and needle release, on a Masnette plate folder. It is certainly the model advertised on the Venus FF plate folder.

#00 size

The #00 size model exists in at least three versions:

  • Light B (5, 10, 25, 50, 100, 250, B, T)
  • Light C (25, 50, 100, B, T)
  • F Light (5–150, T, B)

The exact shutter version is not always mentioned in the available documents. Here is a list of cameras with a #00 Light:

The Rosen shutter mounted on the Semi Rosen has the same aspect and features as the Light B, and is certainly a name variant.

Notes

  1. Close-up picture in Inoue, p.130, picture in Sugiyama, item 1176, and pictures in various advertisements for the cameras mentioned below.

Bibliography