Tessina

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Tessina Automatic with a chrome pentaprism, Tessina 35 with waist level viewfinder, brown leather case with gold trim and chain
The Tessina is a high-quality 35 mm subminiature camera patented by German chemical engineer Dr. Rudolph Steineck in Lugano Switzerland, manufactured by Siegrist in Grenchen Switzerland. It was introduced in 1957 and distributed by Steineck's companyConcava S.A and remained in production up to 1996. The Tessina takes 14x21mm pictures on standard 35mm film (loaded into a special cassette), making it one of the few subminiature cameras to use the format. It is a very small (2x2x1inch) twin lens reflex, with two 25mm f/2.8 Tessinon lenses,one for taking picture, one for viewing on a tiny ground-glass focusing screen on top of the camera. A 45 mirror is employed to bend incoming light onto the film, which lies along the bottom of the camera rather than the back to save space. Apertures are continuously variable down to f/22, and shutter speeds range from 1/2 to 1/500, and B. The Tessina 35,Tessina L can focus down to 9 inches, Tessina Automatic 35mm to 12 inches. The film is advanced via a clockwork master spring built into the takeup spool, with a pullout winder like the crown on a wristwatch. Each winding can last up to 8 exposures.
Three models have been produced: Tessina Automatic 35mm, Tessina 35 and Tessina L in brush aluminium, black and gold color. All three are very similar.

Tessina 8x magnifier

Tessina selenium exposure meter

Tessina film

Tessina wrist band?for attaching to the back of Tessina camera and wear on the wrist like a large watch
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Accessories include:
6x pentaprism (black and chrome)
8x magnifier viewer
chain and tripod adapter
hotshoe adapter
film loader
Selenium exposure meter dimension:26.5mm x22.2mm x9.8mm, weight 19.5g, the smallest exposure meter in the world.
flash gun
Tessina 17 jewel mechanical watch
leather belt case in black or brown with gold color trim.
Wrist bracket, for wearing Tessina camera like a large watch
External links
R.Steineck's Austrian patent #246552: Spiegelreflexkamera
Description of the Tessina on submin.com
Tessina Notes
Categories: 135 film cameras | Subminiature cameras(and so on)

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