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The FED-5V (ФЭД-5В) is the FED-5's little brother. The main difference is that the FED-5 has a light meter and the FED-5V doesn't. Both cameras were in production from 1977 to somewhere in the '90's. As of 1997, the present-day FED no longer produces cameras.
Read more about the FED-5 series on the FED-5 page.