MAMIYA - Seikosha Mamiya Shutter Changes
by MAMIYATechnical document issued by Mamiya Osawa Camera Service Inc., detailing design modifications to Seikosha shutters used on Mamiya cameras. This document provides a comprehensive inventory of internal parts changes affecting both chrome and black shutters available for Mamiya C camera systems. It documents modifications to the slow speed governor, main drive spring, and speed ring components, none of which are interchangeable between earlier and newer designs. The document clarifies that the standard slow speed governor 1103000 (#35) remains unchanged and available indefinitely, while pin-equipped variants for press focus mechanisms are being phased out. It presents detailed illustrations of shutter blades, internal assemblies, and spring configurations across three primary shutter combinations, with technical diagrams showing blade orientation differences when viewing from front to rear. Each section identifies specific part numbers and appropriate configurations for each shutter model, essential information for service technicians and repair professionals managing camera maintenance and parts inventory.
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Document Details
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- Pages
- 3
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- Category
- Photography