Modular lens replacement foot OF-C-T for Canon EF & RF & Sony FE telephoto lenses with Wimberley P-50 (168 mm)

Modular replacement lens foot OF-C-T with Wimberley P-50, compatible with many lenses

You often only notice it out in the field: the standard lens foot is somehow a compromise. Too short, not flexible enough, the balance point doesn’t really fit. This is exactly where the modular replacement lens foot OF-C-T with the Wimberley P-50 quick-release plate with a length of 168 mm comes in. It is compatible with many lenses and is specially tuned to modern super-telephoto primes and zooms from Canon, Sony and Sigma.

If you use, for example, a Canon EF 400mm f/2.8 L IS III or a Canon EF 600mm f/4 L IS III USM, this replacement foot gives you a significantly more stable and better balanced base for your camera and telephoto lens combination. The same applies to current RF teles such as the Canon RF 400mm f/2.8L IS USM (2021), Canon RF 600mm f/4L IS USM (2021), Canon RF 800mm f/5.6L IS USM (2022), Canon RF 1200mm f/8L IS USM (2022) and the Canon RF 100-300mm f/2.8 L IS USM (2023). Sony photographers with a Sony 400mm f/2.8 GM OSS FE [SEL400F28GM] (2018) or Sony 600mm f/4 GM OSS FE [SEL600F40GM] (2019) also benefit from the well-thought-out design, as do users of a Sigma 500mm F4 DG OS HSM | Sports.

The result is a system that doesn’t feel like a foreign object, but like a precisely fitting upgrade that finally lets your telephoto lens perform the way it deserves.

Made from the best materials with top manufacturing quality

With a component that permanently carries heavy telephoto lenses, every detail counts. That’s why we rely on the best materials and manufacturing quality for the OF-C-T. That may sound like a marketing phrase at first, but here it’s meant quite literally. The replacement foot is precisely milled from high-strength metal, cleanly deburred and surface-finished using a process designed for durability.

The combination of the modular lens base OS-C-T for Canon EF, Canon RF and Sony FE telephoto lenses and the Wimberley P-50 base plate creates a very torsion-resistant unit. This keeps your setup steady even at long focal lengths and in light wind, which can quickly make the difference between “almost sharp” and truly sharp images, especially in wildlife, sports or astrophotography. We would say this is more of a tool for tough everyday use than a pretty accessory for the display cabinet.

QD-compatible with two strap anchor mounts for double security

If you’re on the move a lot, you often carry your telephoto lens in your hand or on a strap. The OF-C-T is designed exactly for this, being QD-compatible with 2 strap anchor mounts for double security. You can use two QD strap anchors to secure your lens-camera setup redundantly, for example on a shoulder strap and additionally on a safety strap. This is particularly pleasant when you’re working on uneven terrain, in a stadium or in a hide and don’t want to constantly worry about your expensive glass.

To use the QD strap mounts, you need a suitable strap with QD strap anchors. You can find more information on this under Strap with QD strap anchors.

This way, the replacement foot becomes not only a stable tripod base, but also a secure carrying and transport solution for your telephoto lenses.

ARCA-compatible quick-release base for flexible working

The integrated Wimberley P-50 plate makes the OF-C-T fully ARCA-compatible. This means you can insert the foot directly into suitable ARCA quick-release clamps without additional adapters. Especially if you work with different tripod heads, gimbals or ball heads, this is a real practical advantage because you can change your setup quickly and without fiddling.

You can find more information on ARCA-compatible systems under ARCA-compatible quick-release systems.

Especially at long focal lengths, when you’re switching back and forth between a gimbal, video head and perhaps a lightweight travel tripod, this ARCA-compatible solution makes the difference between “it kind of works” and a truly smooth workflow.

All screws and tools for mounting are fully included

Nothing is more frustrating than unpacking a new part and then realizing that a crucial screw is missing. That’s why all screws and tools required for mounting are included. You get the lens base OS-C-T for Canon EF/RF and Sony FE telephoto lenses, the Wimberley P-50 quick-release plate, matching M4 mounting screws in various lengths, as well as M3 safety stop screws.

The safety stop screws prevent accidental slipping out of the quick-release clamp in case you don’t fully tighten the clamping mechanism or the camera is upside down. It’s a small detail, but in practice extremely reassuring, especially when a Canon RF 1200mm f/8L IS USM (2022) or a Sony 600mm f/4 GM OSS FE is attached to the plate.

A practical DW-03 multi-tool is also included, allowing you to mount and readjust all relevant screws as needed. So you don’t have to rummage through your toolbox and can get started right away.

Adjustable base on the plate for perfect balance

A key feature of this modular replacement lens foot is the base on the plate, which is adjustable to optimally adapt to the lens and the balance point of the lens-camera combination. The full length of the Wimberley P-50 plate is available for you to position the base depending on your setup.

Whether you’re working with a heavy DSLR with battery grip, a mirrorless camera without a grip or with an additional teleconverter, you can set the balance point so that your telephoto lens is almost perfectly balanced on the gimbal or ball head. This reduces the load on the tripod head and makes panning significantly smoother. Especially during long sessions in wildlife photography or at sporting events, you’ll notice that your arms and shoulders are noticeably relieved.

This allows the replacement foot to be finely tuned to your Canon EF 400mm f/2.8 L IS III, Canon EF 600mm f/4 L IS III USM, Canon RF 800mm f/5.6L IS USM (2022), Sony 400mm f/2.8 GM OSS FE [SEL400F28GM], Sony 600mm f/4 GM OSS FE [SEL600F40GM] or Sigma 500mm F4 DG OS HSM | Sports. Each of these lenses has its own balance, and this is exactly where the modular concept plays to its strengths.

Well-thought-out system for Canon EF, Canon RF, Sony FE and Sigma telephoto lenses

The OF-C-T is not just a “spare part”, but a deliberately designed system for ambitious telephoto photography. For Canon EF users, it covers lenses such as the Canon EF 400mm f/2.8 L IS III and the Canon EF 600mm f/4 L IS III USM. For Canon RF photographers, it is an ideal base for the current super-telephoto generations such as the Canon RF 400mm f/2.8L IS USM (2021), Canon RF 600mm f/4L IS USM (2021), Canon RF 800mm f/5.6L IS USM (2022), Canon RF 1200mm f/8L IS USM (2022) and the Canon RF 100-300mm f/2.8 L IS USM (2023).

Sony users with a Sony 400mm f/2.8 GM OSS FE [SEL400F28GM] (2018) or Sony 600mm f/4 GM OSS FE [SEL600F40GM] (2019) get a robust, ARCA-compatible base that clearly outperforms the standard foot in terms of handling and stability. And owners of a Sigma 500mm F4 DG OS HSM | Sports also benefit from the modular design, the long plate and the ability to set the balance point precisely.

The result is a universal yet very precisely tuned system that integrates seamlessly into professional workflows and simply takes work off your hands in everyday use instead of creating new problems.

Scope of delivery and practical use in everyday photography

The scope of delivery of the modular replacement lens foot OF-C-T with Wimberley P-50 (168 mm) includes everything you need for direct mounting on your telephoto lens. Included are the lens base OS-C-T for Canon EF/RF and Sony FE telephoto lenses, the long Wimberley P-50 quick-release plate, M4 mounting screws in different lengths to match the respective lens feet, M3 safety stop screws and the DW-03 multi-tool.

In practice, this means: you mount the base on your lens, slide it on the plate so that the balance point matches your camera, secure everything with the appropriate screws and you’re ready to go. No guesswork, no improvised solutions. Just a solid, well-thought-out setup that makes your telephoto lenses stable, safe and comfortable to use.