Tessina
The Tessina was a range of subminiature cameras made in Switzerland by Sigrist, and distributed by Concava S. A. For a subminiature, it had three unusual features: it used 35mm film in special cassettes, running across the bottom of the camera - at a right-angle to the lens axis; it had spring motor film advance, and was a TLR. There were there models, the 35, 35 Auto and 35L.
It had a Tessinon 25mm f2.8 lens, set in 1/2-1/500s shutter on a metal body with rounded ends, measuring approx 69x56x27mm (2½x2¼x1 inch). The top carried the two-frame flip-up viewfinder; under the frame finder was a reflex, waist-level finder - making it a TLR. An accessory magnifier was available for the tiny reflex screen. The lenses had a sliding cover for protection. The top also had an exposure table, and the focus and aperture dials. The shutter speed is set on a dial at the back. Frame size is 14x21mm - smaller than a standard half-frame camera, but larger than many subminiatures.
