Gaumont Stereo-Spido metallique |
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Manufactured or assembled in France from (Circa) 1920 to (After) 1920.
Index of rarity in France: Rare (among non-specialized garage sales)
Inventory number: 10959
See the complete technical specifications
Chronology of cameras Gaumont
Traduction de Manuel M
It is the “tropical” version of stereo spido out of wood. The barrel and the magazine are out of pure nickel.
The format is 6 x 13. It allows the take of views stereo in 6 X 6.5 or the panoramics ones by translation of the front plate in the entirety of the format.
The lenses coupled are some Zeiss Tessar, manufactured under license by E.Krauss in Paris 1: 6.3, F.84.
The shutter is the is Decaux with air-operated brake allowing 7 speeds of the 1/5 second to the 1/175 second.
The magazine A.J.G contains 12 plates.
Principle of the air brake.
The air brake played in the former shutter the role of the small clockwork slow speeds of the traditional mechanical shutters.
On this same principle, there exist also pneumatic self-timers.
An air brake is like a bicycle pump in miniature. A piston compresses air in a cylinder.
The air escapes from it, either by a gauged, fixed or adjustable opening, or by the play between the piston and the lining.
By cocking the shutter, one compresses a spring which, once released, will push the piston which, in its turn, will compress the air.
During release, the mechanism “expose”, either by releasing one of the two guillotines, or by spreading one or more pallets.
When the piston arrives in end of the way, the air being itself escaped, it starts the motion of closing.
According to the systems, the time of closing can be regulated either by the tension of the spring, or by varying the exhaust opening, or by the distance covered necessary to closing.
There is thus a very large variety of pneumatic shutters…
![Gaumont Stereo-Spido metallique](../../gaumont/images/Gaumont_stereo_spido_metal.jpg )
![Gaumont Stereo-Spido metallique](../../gaumont/images/Gaumont_stereo_spido_metal_bis.jpg)
Interesting links or bibliography :
![]() Revue Française de Photographie de 1925 |
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