The modern, 1970 spy camera, updated version of the F-21, now with a plastic body, relatively quiet electric motor film advance, electric remote release. The batteries are stored in the remote release.
Inside the film chamber the sliding control is marked 65,130,250,500 for film sensitivity in GOST. The electronic shutter speeds are 1/60 to 1/500 s. The Neylon (F21 with electronic shutter) is similar.Neozit has a 24x24 mm
frame and uses 27 mm wide film cut from un-perforated 35mm film.
| Model | F-21 Neozit (Neotsit, Neocyt) |
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| Finish/colour | black plastic |
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Last Updated on 22nd September 2005