GOI Industar-70 2.8/50mm OB327A prototype *
Startpreis
6.000 €
Gebote: 0
12.000 – 14.000 €
Versandnformation
Prototype lens released by GOI in 1972 for M39 FED/Zorki mount. Focal length 4.7 cm, angular field 46°, focusing range from 0.8 m to infinity. The aperture is controlled by an external metal strip with round holes of varying diameters, an unusual solution differing from conventional iris constructions.
We have very limited information about this model. According to our research, a similar lens bearing serial number 7260 existed under the designation Industar-71. The present example may therefore represent a closely related or transitional prototype.
Despite the similarity in name, this lens is technically and constructionally dissimilar to the Industar-70 lens used on the Sokol camera. A rare and little-documented GOI prototype.