1. Dedicated FD Aperture Lock Design: Solves Adaptation Challenges for Older Lenses

Canon FD lenses (including New FD and Breech-lock versions) have a unique mechanical structure, requiring an external mechanical mechanism to hold the aperture lever in place to stop down the aperture. The Leedsen FD-FX adapter features a specially designed Integrated aperture lock ring, clearly marked with “ON/OFF” directions. When in the “ON” position, the adapter ring forcibly engages the lens’s aperture link via an internal pin. This crucial function allows photographers to perform manual aperture adjustment directly using the lens’s aperture ring while shooting video or still photography. For retailers selling to seasoned photography enthusiasts, this is a key selling point that differentiates professional adapter rings from cheap, inferior products.

2. All-Aluminum Alloy Manufacturing: A Balance of Durability and Lightweight

As a frequently used camera photographic adapter ring, durability is a key concern for B2B buyers. The Leedsen FD-FX adapter ring abandons easily aging plastic components, using only high-quality CNC machined aluminum. Its surface undergoes a deep black anodized treatment, making it not only scratch-resistant and wear-resistant but also highly corrosion-resistant. The inner wall features a professional matte thread design to minimize internal light reflection, preventing glare or ghosting during backlit shooting and ensuring that the unique optical characteristics of older lenses are preserved.

3. Precision Flange Distance Control: Guaranteed Infinity Focus

In adapter manufacturing, even minute deviations in precision can prevent infinity focus. Leedsen adheres strictly to industrial-grade tolerance standards, ensuring precise flange distance between the FD mount and Fuji X mount. This Canon FD lens mount converter guarantees a perfectly stable lens mount with no wobbling and perfectly supports the Infinity focus guarantee. This is especially important for photographers using wide-angle FD lenses for landscape shooting. The stable mechanical connection gives your customers greater confidence when using manual focus peaking.

4. Leedsen: Your Lens Manufacturing Supply Chain

In the cross-border e-commerce and photography equipment wholesale sector, finding a reliable lens manufacturer supplier is crucial for success. Leedsen possesses mature production lines and quality control processes, enabling a stable supply of high-quality lens adapters. We understand the needs of B2B clients, therefore this FD-FX adapter ring not only supports OEM service (such as laser engraving your brand logo) but also welcomes small order trials. All our products comply with CE/RoHS certification standards and are packaged for export and retail. Choosing Leedsen means choosing a long-term partner who can provide fast response and highly cost-effective products.