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Mackenstein Jumelle favori envoyer Print
Photos by JFL text by JFL. From the collection of JFL
France Version française

Chronology of the Mackenstein brand  New window

Manufactured in France from Circa 1900 until 0.
Index of rarity in France : Rare (among non-specialized garage sales)
Sold listing on Ebay.com New window
Inventory number: 15447

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Mackenstein Jumelle

This jumelle camera No 629 bears all the identifications of the brand and its magazine receives 9 x 12 cm plates.
The lens CP Goerz No. 47666 allows to estimate the date of manufacture towards 1900-1901.

What differentiates it from the  "jumelles réduitesdescribed elsewhere, is the speed pneumatically adjusted of the shutter:

  • Arming is done by retracting the rod of a single acting piston cylinder, attached to the guillotine  shutter.
  • When triggered, the cylinder is released from pressing the top left button. The hole below the button allows to connect a cable release.
  • The air admission into the cylinder chamber is controlled by a small hole in a hub disposed at the end of the cylinder. It comprises five different diameter holes and a position P without hole.
     

The knurled knob on the side allows to move the front and therefore to adjust the distance. The distance is indicated on a graduated scale located in front of the viewfinder.