| 词条 | Goerz Minicord |
| 释义 |
Minicord length 114 mm, 71 mm deep, and 71 mm wide. It is slightly larger than a pack of cigarettes.[3] The taking lens is a six-element coated Helgor 25 mm F2 lens, focusing from 12 inches to infinity. A depth of field table is built into the camera panel. Aperture 2, 2.8, 4, 5.6, 8, 11. The viewing lens is linked to the taking lens. Light rays entering the viewing lens are refracted by a prism and form a bright, life-size image on a piece of ground glass; the eyepiece is adjustable for sharp image.[4] Unlike an ordinary twin lens reflex camera, the Goerz Minicord image is not only right side up, but also unreversed, due to the use of a prism instead of mirror.[5][6] Minicord is the only twin lens reflex camera in 16 mm subminiature photography. Minicord has an all-metal focal plane shutter, speed: B, 1/10, 1/25, 1/50/, 1/100, 1/200, 1/400. Film: double-perforated 16 mm film in special Minicord cassette, image size 10 mm × 10 mm. In 1953, C.P.Goerz introduced Goerz Minicord III, with key feature same as previous model, but with flash sync added. References1. ^William White, Sumbiniature Photography, Focal Press 1990, p74 2. ^Paul Wahl, Subminature Technique, Chilton Co,1960, p35 3. ^Paul Wahl,Subminiature Technique, Chilton Co 1960, p35 4. ^Rick Olson Goerz Minicord TLR 5. ^William White P75 6. ^Paul Wahl p35 1 : Subminiature cameras |
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