Body Serial: 1644460
Lens Serial: 121153
The OM-1 is an all-mechanical SLR. It has a very large viewfinder with interchangeable screens but a fixed prism. It also has a through-the-lens exposure meter controlling a needle visible in the viewfinder. It has a very compact body, whose form was retained in later models.
Made: 1979, Japan
Date Purchased: Oct 22, 2011
Store: David Chan Company, Hong Kong