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Ricoh Ricohl Mod.IIB |
 Version française |
Manufactured or assembled in Japan from (Circa) 1942 to (Circa) 1943.
Index of rarity in France: Rare (among non-specialized garage sales)
Inventory number: 7947
See the complete technical specifications
Chronology of cameras Ricoh
In the early 1940s, Riken (predecessor of Ricoh), inspired by the Leica, aims to make more versatile cameras than the previous productions of the brand inherited from Asahi Bussan.
It was decided to create focal plane shutter devices and interchangeable lenses.
However, because of the low availability of the 135 film in Japan, the 3 x 4 format on film 127 will be preferred which will complicate the development of the coupled system of advance film and arming of the focal plane shutter .
The first camera in the series, the Gokoku, will pay the price with reliability problems.
Ichimura Kiyoshi, the founder of Riken's photographic division, then asked Fujimoto Sakae, the future designer of the Ricohflex III, to help solve these problems.
The next models will be called Ricohl
The project will be interrupted by the hardening of the Second World War when it seems that Riken had an ambitious development plan.
The family consists of
Gokoku N°1 (The Sugiyama presents 3 models of Gokoku N° 1 including one with an interchangeable lens apparently in mount LTM)
Ricohl Mod.I
Ricohl Mod.IIB
We know very little of a possible Ricohl II of which there is no known copy or illustration and there is only speculation about it.
The Ricohl Mod.IIB which interests us here is thus the last camera of the family.
It is similar to the Ricohl Mod.I but has the distinction of having a lens mounted on a screw mount.
This mount is not compatible with the Leica M39, it measures 40 mm in diameter at a pitch of 1/32 of inch and a draft of 27.9 mm. (39mm, 1/26 "and 28.8mm for the LTM)
The Neutar 4 elements 50mm telescopic that match seems to have been the only lens made.
This diagram created by VB allows us to measure the complexity of Ricoh's history.
| 1913 | A few Japanese scientists had the idea of establishing a research institute. |
| 1915 | The proposal for the creation of the Rikagaku Kenkyūsho Institute of Physical and Chemical Research is presented to the Japanese parliament. |
| 1917 | The Riken Institute and Foundation are established. |
| 1927 | The Rikagaku Kõgyõ K.K. is created to manufacture and distribute products resulting from research, such as photographic papers. |
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Interesting links or bibliography :
| les Gokoku et Ricohl sur camera-wiki, suggested by Vincent B |
| Les Gokoku et Ricohl sur le site historique Ricoh ( en Japonais ), suggested by Vincent B |
| A propos de l'entrainement du film des Gokoku et Ricohl ( en Japonais ), suggested by Vincent B |
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