Canon FD 300mm f/2.8L Lens Replacement Foot CFR-004

The Hejnar Photo CFR-004 is a precision-engineered lens replacement foot designed for the manual focus Canon FD 300mm f/2.8L lens. This durable Arca-Swiss compatible foot features a built-in stainless steel Quick Detach (QD) socket for heavy-duty sling straps and a double-dovetail profile for multi-accessory clamping. CNC-machined from solid aircraft-grade 6061-T6 aluminum.

Quick Overview & Key Features

• Exact Lens Fit: Custom replacement foot for vintage Canon FD 300mm f/2.8L glass.
• QD Strap Integration: Built-in stainless steel QD socket for push-button sling mounts.
• Double-Dovetail Design: Dual clamping surfaces on the back support tripods and flash brackets simultaneously.
• Premium Materials: CNC-machined from solid 6061-T6 aluminum with black hard-coat anodizing.
• Made in the USA: Proudly manufactured with professional-grade tolerances.

Product Description

The CFR-004 replacement foot is the ideal professional upgrade for photographers looking to maximize the stability of their classic Canon FD 300mm f/2.8L lens. This plate seamlessly integrates an Arca-Swiss compatible dovetail, allowing you to slide the lens directly into gimbal heads, ball heads, and tripod clamps without adding the bulk of extra plates.

The double-dovetail profile provides exceptional versatility. You can mount your primary camera setup to your tripod using the bottom track while using the top track on the back to clamp on external flash brackets, video accessories, or macro rails.

A standout feature of this model is the integrated Quick Detach (QD) socket. This military-grade carry system allows you to click on standard push-button sling-style straps for rapid transitions and comfortable outdoor carry, then detach instantly to mount onto your rig. The QD mechanism is trusted globally to secure heavy lens systems.

How to Install the CFR-004:
To remove your original factory foot, use the M3 hex key tool that comes with the part to completely extract the four Canon mounting screws. To install the CFR-004, use the four provided screws and secure the foot tightly to the lens collar. For added security in rugged outdoor conditions, consider applying a drop of Loctite 242 removable threadlocker to the screws.