Sony a-5074-475-a Zoom Cam Barrel Assembly

Product Description

The SONY a-5074-475-a is a zoom cam barrel assembly designed as an internal mechanical component for compatible Sony camera lenses. This part manages the cam-driven movement of internal lens groups during zoom operation, maintaining optical alignment as focal length is adjusted. It is a factory-replacement part intended for bench-level lens repair performed by qualified optical or electronics repair technicians. Proper fitment and alignment are critical to restoring correct zoom function and image quality after installation.

This assembly is referenced for use with the Sony SEL2870GM lens system. It is suited to authorized repair centers and experienced lens technicians performing component-level disassembly and reassembly of Sony E-mount or compatible zoom lenses. This is not a field-serviceable part and requires a controlled workspace and appropriate optical repair tools.

Key Features

• OEM factory-replacement zoom cam barrel for precise mechanical fitment
• Controls cam-driven movement of internal lens groups during zoom operation
• Designed for component-level lens repair and restoration
• Referenced for use with the SEL2870GM lens platform

Compatibility

Referenced for use with the Sony SEL2870GM lens. Confirm part number against the specific lens serial number and service documentation before ordering.

Installation Notes

Installation should be performed by a qualified optical or electronics repair technician with experience in precision lens disassembly. Power down and disconnect any attached camera body before beginning any lens service work. Specialized lens spanner wrenches, optical tools, and a clean, dust-controlled workspace are required. Follow applicable Sony service documentation for disassembly sequence and reassembly torque guidance.

Technical Specifications

• Component Type: Zoom Cam Barrel Assembly
• Reference Lens: SEL2870GM

Standard Information

• Brand: SONY
• Manufacturer Part Number: a-5074-475-a