The Vest-Pocket Tenax or Plate Tenax is a versatile miniature strut folding camera, made from about 1909 by Goerz in Berlin, for 4.5x6cm glass plates. It has a Compound shutter with speeds from 1 to 1/250 sec. built into the front standard, a Newton finder with the optical element sliding out of the front standard, and a 75mm double anastigmat lens, focusing from 2 metres to infinity. The camera's lens is one of Goerz's; a Dagor 1:6.8 as normal lens, a 1:6.8 Syntor as budget equipment, or a fast 1:4.5 Celor as advanced optics. The "Tropical Vest Pocket Tenax" with Dagor was the luxury variant, though less spectacular than some 'Luxus' cameras.
- 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). p357-8.
- Tropical Vest-Pocket Tenax, about 1910, with 7.5 cm f/4.5 Dogmar, green reptile leather covering and bellows, and nickel-plated fittings, sold at the eighteenth Westlicht Photographica Auction, in December 2010.
- Vest-Pocket Tenax and Coat-Pocket Tenax at Sylvain Halgand's Collection Appareils (in French)
- Vest-Pocket Tenax, about 1920, with 7.5 cm f/6.8 Syntor, and with plateholders and leather pouch cases, sold at the fifth Westlicht auction, in April 2004; the auction listing suggests this camera is unused old stock.
- Coat-Pocket Tenax, about 1910, with ground-glass focusing screen, film-pack adapter and accessory brilliant finder, sold at the fourteenth Westlicht auction, in November 2008.
- Stereo-Tenax, about 1920, with 60 mm f/6.8 Dagor III lenses, sold at the fifth Westlicht auction, in April 2004.