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Canon 400mm - 800mm IS Lens Foot | LCF-51



Foot for Canon 400mm/600mm/800mm IS


Some collared, telephoto lenses have a foot than can be removed. If your lens has this option, choose one of our foot replacements instead of a lens plate. A replacement foot with built-in-dovetail mounting will be lighter, lower in profile, and provide the best possible stability for your lens. Really Right Stuff foot replacements are precision machined from solid blocks of 6061-T6 aluminum and are fully compatible with any RRS Dovetail quick-release system. This foot replaces the Canon lens collar foot on the following Canon lenses:
  • Canon EF 400mm f/2.8L-IS
  • Canon EF 600mm f/4L-IS
  • Canon EF 800mm f/5.6L-IS
    1. To remove the Canon foot, use the M3 hex key tool that comes with the LCF-51 to completely remove the four Canon mounting screws.
    2. To install the LCF-51, use the four original Canon screws and secure the RRS foot to the lens collar.
    3. If your mounting screws loosen over time, consider using a drop of medium threadlocker, such as Vibratite or Loctite 242 for better security.
    Use one of our Long Lens Support Packages to stabilize your telephoto lenses and improve your shots.
  • Features

    • CNC machined 6061-T6 aluminum
    • Anodized; Type II Black
    • 1/4"-20 threaded accessory mounting socket
    • Integrated QD (Quick Detach) socket


    1. Length: 5.8"/ 147mm
    2. Height: 2.0"/ 51mm
    3. Weight: 7.0oz/ 198g

    In the Box

    1. (1) Canon 400mm - 800mm IS lens foot
    2. (2) M3 safety-stop screw
    3. (1) M2.5 hex key
    4. (1) User's guide