Canon EF 24-70mm f/2.8L II Aperture Flex Cable Diaphragm Assembly

Canon EF 24-70mm f/2.8L II Aperture Group Flex Cable – Diaphragm Assembly (YG2-3001-010)

Restore precise aperture control to your Canon EF 24-70mm f/2.8L II USM lens with this genuine-spec replacement Aperture Group Flex Cable and Power Diaphragm Assembly (part number YG2-3001-010). Designed as a direct-fit replacement, this component ensures accurate, responsive diaphragm operation so your lens performs exactly as it should — shot after shot.

Whether you're a professional photographer performing a lens service or a repair technician sourcing quality replacement parts, this assembly delivers the reliability you need to get your glass back to peak performance.

Key Features

• Direct Compatibility: Designed specifically for the Canon EF 24-70mm f/2.8L II USM lens
• Part Number: YG2-3001-010 — original-spec aperture group flex cable and diaphragm assembly
• Precise Aperture Control: Restores smooth, accurate diaphragm blade movement for consistent exposure across your full aperture range
• Durable Construction: Built to withstand the demands of professional lens use
• Easy Integration: Drop-in replacement for experienced lens technicians and repair professionals
• Includes: Flex cable power diaphragm assembly unit

Compatible With

• Canon EF 24-70mm f/2.8L II USM

Who Is This For?

This part is ideal for professional camera repair technicians, lens service centers, or experienced photographers who service their own equipment. If your Canon 24-70mm f/2.8L II is displaying inconsistent aperture behavior or diaphragm blade issues, this genuine-spec replacement assembly is the right fix.

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Frequently Asked Questions

Q: What Canon lens is this aperture group flex cable assembly compatible with?

A: This aperture group flex cable and power diaphragm assembly (part number YG2-3001-010) is specifically designed for the Canon EF 24-70mm f/2.8L II USM lens. It is not a universal part — always confirm your lens model before purchasing.

Q: What does the diaphragm assembly do in a camera lens?

A: The diaphragm assembly controls the aperture blades inside your Canon EF 24-70mm f/2.8L II lens, regulating the amount of light that reaches the camera sensor. The flex cable connects the diaphragm mechanism to the lens electronics, enabling precise aperture adjustments as you shoot. A faulty flex cable or diaphragm assembly can result in inconsistent exposure, aperture errors, or failure to stop down correctly — this replacement part restores full functionality.

Q: Is this an original or aftermarket part?

A: This part is listed as original-spec and references the genuine Canon part number YG2-3001-010, ensuring a precise fit and reliable performance for the Canon EF 24-70mm f/2.8L II USM lens.

Q: Do I need professional skills to install this aperture flex cable assembly?

A: Yes. Lens disassembly and component replacement requires specialized tools, technical knowledge, and a clean workspace. This part is intended for experienced lens repair technicians or professional camera service centers. Improper installation may cause further damage to the lens.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.