ROLLEIFLEX SL35 Complete Documentation

Comprehensive service manual and technical study of the Rolleiflex SL35, a professional 35 mm single-lens reflex camera with interchangeable lenses and integrated TTL light meter. This detailed workshop documentation explores the mechanical and optical design of this acclaimed Rollei instrument, tracing its development from earlier models including the SL26 and compact SL35 variants. The guide thoroughly examines the distinctive metering system built around two cadmium sulfide (CdS) cells with 4 mm diameter photosensors that enable semi-automatic weighted exposure measurement directly through the lens. Core sections provide in-depth coverage of the stopped-down diaphragm exposure mechanism, practical guidance on installing and operating the Mallory PX625 mercury battery (1.3 V output), and step-by-step instructions for rapid film loading. The manual includes precise mounting schematics for both CdS measurement cells, detailed sectional diagrams of the shutter assembly with individual component identification, and technical illustrations showing how the metering areas weight exposure across the viewfinder field relative to the standard lens. Practical examples with sample photographs of architectural subjects demonstrate how metering weighting patterns directly influence final exposure readings. An authoritative reference for repair technicians, camera collectors, and serious photographers seeking to understand the engineering principles that define the Rolleiflex SL35 platform.