Difference between revisions of "Mackenstein jumelle cameras"

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Revision as of 00:13, 9 January 2012

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The Jumelle Stéreo-panoramique is a jumelle type camera for 6x13 cm or 8x18 cm plates, made by Mackenstein of Paris in about 1900. It is a typical stero jumelle camera. It is wooden-bodied, with leather covering. The plates are held in a removable magazine back. It has a guillotine shutter, with several instantaneous speeds, plus 'B' ('Pose'), behind the lenses. There is an external rod linkage on the lens board, connecting the aperture controls of the lenses. Focusing is by rack and pinion, moving the whole lens board out from the body, with a brass focusing knob on the right of the body, and there is a focusing scale mounted on the top of the board. The lens board allows front rise. It also slides sideways, not for perspective control, but to allow one of the lenses to be placed centrally, for panoramic photographs using the whole stereo plate. For such use, the septum dividing the camera inside would be removed (shown in the advertisement illustrated). There is a Newton finder on top of the camera. An example seen at Westlicht has two finder pointers (in front of the finder glass, as illustrated in the advertisement), one for stereo and another for panoramic use.[1] In another example in the larger size, the finder is mounted on a track on the body and can slide sideways, presumably to position it for separate (mono) exposures on each half of the plate (with one of the lenses capped).[2]


Notes

  1. 6x13 cm stereo-panoramic jumelle camera with 90 mm Goerz Anastigmat Series III, no. 0 lenses, sold at the November 2005 Westlicht auction.
  2. 8x18 cm stereo-panoramic jumelle camera (listed by Westlicht as 9x18) with 110 mm f/8 Krauss-Zeiss Protar lenses, sold at the May 2011 Westlicht Photographica Auction.