Difference between revisions of "Sténo-Jumelle"

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Revision as of 06:26, 2 January 2012

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The Steno-Jumelle is a plate camera made by Lucien Joux & Compagnie of Paris from about 1895. It was made in two sizes, for twelve 9×12 cm plates, or eighteen 6.5×9 cm plates.[1]

As other cameras of the 'jumelle' type, the body of the camera tapers toward the front. It is constructed as two half-boxes, one inside the other (or a box and its lid). The two are hinged together at the front, and the upper part can be lifted up at the back. The upper part contains a plate magazine, and lifting and lowering it serves to move the most recently exposed plate from the front of the magazine to the back (the camera is held with the lens uppermost for this operation[2]). The camera and its plate-changing mechanism is the subject of a patent by Lucien Joux.[3][4]

The camera appears to have been substantially redesigned in around 1898. Collection d'Appareils reproduces an extract from l'Annuaire de la Photographie of 1898,[2] in which the Sténo-Jumelle is described as of all-metal construction, and so more compact. Earlier cameras, including some of the examples linked below, have part-wooden bodies.

Examples of the camera have various lenses, mostly by Krauss, including an f/8 Krauss-Zeiss Anastigmat[5][6][7] and an f/4.5 Tessar, also made by Krauss under licence,[8] (the Tessar itself was only patented in 1902, so this must be a late example of the camera). One example has a lens by Chevalier.[9] The 1898 information at Collection d'Appareils lists lenses for the metal-bodied camera as f/8 Zeiss Series IIa anastigmats (110 mm and 136 mm for the 6.5×9 cm and 9×12 cm cameras respectively; these are presumably the Krauss-Zeiss lenses seen on the examples linked here), or Goerz Series III anastigmats (110 mm f/7.7 for the smaller camera, 130 mm f/7.1 for the larger); no examples with these Goerz lenses have been seen.

The 1898 information at Collection d'Appareils refers to helical focusing on the lens (down to 1.5 metre for the 6.5×9 cm camera, and 2 metre for the 9×12 cm one). This is visible in some of the examples linked here;[9][10] The others have a large lever on the left of the body, behind the shutter unit, which may be for focusing.

The shutter is a guillotine type, behind the lens: Frans Jacobs in his blog The Camera Collector states that it is a five-speed shutter.[10]) and an I/B/T selector on the lens board. There is a Newton-type finder on the top, with an aiming pointer in front of the glass.


Notes

  1. McKeown, James M. and Joan C. McKeown's Price Guide to Antique and Classic Cameras, 12th Edition, 2005-2006. USA, Centennial Photo Service, 2004. ISBN 0-931838-40-1 (hardcover). ISBN 0-931838-41-X (softcover). p453.
  2. 2.0 2.1 Sténo-Jumelle at Sylvain Halgand's Collection d'Appareils, including a substantial extract from l'Annuaire de la Photographie of 1898.
  3. German patent DE 84894 (C) and Swiss Patent CH 9283 (A) of 1894, describing the Steno-Jumelle camera and its plate-changing mechanism, at Espacenet, the patent search facility of the European Patent Office.
  4. US Patent 538736 of 1895 in the name of Lucien Joux and Jules Marchal, describing the same camera, at Google patents.
  5. Steno-Jumelle 6.5×9 cm camera with a 110 mm f/8 Krauss-Zeiss Anastigmat sold at the May 2003 Westlicht Photographica Auction in Vienna.
  6. Steno-Jumelle 9×12 cm camera with 136 mm f/8 Krauss-Zeiss anastigmat and de luxe brown leather covering, in the '2009 Highlights' page at Auction Team Breker.
  7. Steno-Jumelle 6.5×9 cm camera also with Krauss lens sold in May 2006 by Auction Team Breker in Cologne.
  8. Steno-Jumelle 6.5×9 cm camera with 112 mm f/4.5 Tessar sold at the November 2006 Westlicht auction.
  9. 9.0 9.1 Steno-Jumelle 6.5×9 cm camera with a Chevalier lens sold at the November 2003 Westlicht auction.
  10. 10.0 10.1 Steno-Jumelle at Frans Jacobs' blog The Camera Collector.