Really Right Stuff LCF-55 replacement foot for Canon RF 24-105 mm f/2.8 L IS Z USM

Really Right Stuff LCF-55, the precisely fitting replacement foot for your Canon RF 24–105 mm f/2.8 L IS USM Z

Sometimes you only notice while working how much a good lens foot is missing. The Really Right Stuff LCF-55 replaces the original foot of your Canon RF 24–105mm f/2.8 L IS USM Z from 2023 and also fits the Canon RF 70–200mm f/2.8 L IS USM Z from 2024. It is mounted in place of the standard foot and comes with an integrated dovetail profile that is designed directly for professional quick-release systems. No additional adapter needed, no fiddling around, just mount it and get started.

With a length of 12.9 cm, a width of 5.2 cm and a height of 3.3 cm, the LCF-55 offers a stable, well-balanced contact surface without unnecessarily bulking up your setup. The weight is only 117 g, which is pleasantly light for such a robust replacement foot and prevents your telephoto zoom from becoming front-heavy. In short: solidly built but not bulky.

Specifically designed for this lens, precisely fitting the Canon RF 24–105mm f/2.8 L IS USM Z

The LCF-55 is not just some universal compromise, but was developed specifically for this lens and the RF 70–200mm f/2.8 L IS USM Z. The shape of the foot follows the geometry of the Canon RF telephoto zooms so that the contact surface is optimally supported and the lens sits securely and twist-proof. It is explicitly not universal, but deliberately tailored to these RF L lenses to avoid play, wobble or undesirable stress at the mount.

The built-in anti-twist protection with stop ensures that the lens does not rotate unnoticed in the foot. This really pays off, especially during longer sessions with a tripod, gimbal or video head, because your framing remains stable and you don’t have to constantly readjust. For photographers and filmmakers who work seriously with the new Canon RF Z lenses, this is a very pleasant, almost unspectacularly reliable solution.

Made in the USA, precision manufacturing from 6061-T6 aluminum

The LCF-55 is made in the USA from high-quality 6061-T6 aluminum, a material that has proven itself for years in aviation and professional photography. You notice this immediately in the build quality. The edges are cleanly milled, the fits are tight, and the foot feels as if it were cast in one piece with the lens.

The surface is black anodized Type II, which not only looks classy but also protects against abrasion and corrosion. Especially if you are outdoors a lot, in rain, dust or winter sub-zero temperatures, the foot will remain in good shape both visually and functionally for a long time. No frills, but a robust tool designed for long-term use.

Arca-style compatible, integrated clamping profile for 38 mm quick-release clamps

The integrated clamping profile is Arca-style compatible and, according to the manufacturer, fits 38 mm quick-release clamps. You can therefore clamp the foot directly into a suitable ARCA compatible quick-release coupling without additional plates or adapters. This saves height, weight and, above all, time if you frequently switch between tripod, gimbal and handheld shooting.

Because the LCF-55 is designed to be ARCA compatible from the factory, your lens sits securely and with repeatable accuracy in the clamp. Especially with telephoto zooms that you might also use for sports, wildlife or video, this direct connection is worth its weight in gold, as it increases stability and minimizes micro-play. For many users, the foot will thus become the lens’s quasi-permanent base plate.

With QD strap socket, quick carrying option for QD-compatible straps

The LCF-55 features a QD strap socket, more precisely a single QD-compatible receptacle. This allows you to snap a suitable carrying strap with QD strap anchors directly into the foot and carry your lens-body setup safely over your shoulder. This is particularly practical if you frequently remove the lens from the tripod and move around handheld in between.

To use this QD strap socket, you need a strap with QD strap anchors. You can find a suitable strap, for example, here: strap with QD strap anchors. This allows you to quickly switch your setup from “tripod-ready” to “carry-ready” without having to fiddle with the camera every time.

Safe on the go, safety stop screws and Really Right Stuff R-Lock

For additional security, the LCF-55 is equipped with two safety stop screws. These prevent accidental slipping out of the quick-release coupling if the clamp is not fully closed or loosens slightly during movement. Especially with expensive RF L lenses, this small mechanical safeguard is a very reassuring detail.

In addition, Really Right Stuff relies on its own R-Lock system, which enables defined positioning and locking in compatible clamps. In combination with the anti-twist protection on the lens, this results in a very secure, play-free setup that remains stable even during fast pans or when transported while mounted.

Practical threaded holes and flexible mounting options

On the underside of the LCF-55 you will find two photo threads: one 3/8" UNC and one 1/4" UNC. This allows you to mount the foot directly on tripod heads, video tilters or special mounts, even if they are not equipped with an Arca-style system. This additional flexibility is helpful if you work with different systems or want to continue using existing equipment.

The combination of an Arca-style compatible clamping profile and classic photo threads makes the LCF-55 a kind of “central hub” of your setup. You don’t have to constantly rebuild, but can quickly adapt the lens to different mounts, from the studio tripod to the compact travel tripod.

Thought-out details for everyday use

Although the LCF-55 does not have a PMG strap socket and is not designed to be universal, the overall concept feels very coherent. Everything is geared towards stability, practical usability and a clearly defined target group: users who regularly use their Canon RF 24–105mm f/2.8 L IS USM Z and RF 70–200mm f/2.8 L IS USM Z lenses on a tripod or gimbal and have no desire for wobbly intermediate solutions.

All in all, you get a precisely manufactured, ARCA compatible replacement foot with integrated QD strap socket, anti-twist protection, two safety stop screws, R-Lock support and a robust anodized surface. Perhaps a rather inconspicuous component, but one that makes a noticeable difference in everyday use when it comes to handling, safety and speed at work.