SIGMA - Sigma 103NC2 Parts

Official spare parts catalog for the Sigma 180mm F3.5 D EX APO MACRO lens designed for Nikon AF camera bodies. This comprehensive parts list and technical reference provides essential information for component identification, replacement, and assembly procedures. The document features detailed exploded diagrams illustrating the precise arrangement of all optical and mechanical elements within the lens assembly, accompanied by standardized Sigma part numbers. Each component is identified by its reference designation alongside both Japanese and English nomenclature, facilitating accurate parts location and ordering. Coverage includes optical groups such as front lens elements, objective mounts, and scale rings; focusing mechanisms including cam units, ultrasonic motors, and focus guides; as well as protective and fastening components throughout the assembly. Technical drawings present both external and internal elements in systematic detail, enabling a thorough understanding of the lens architecture and internal structure. An indispensable workshop reference for maintenance technicians, professional repair workshops, and experienced users undertaking technical service on this professional-grade macro lens.