Kirk LP-69 replacement lens foot for Canon EF 400 & 600 L IS III lenses & Canon RF 400 & 600 mm f/4

Kirk LP-69 replacement lens foot for Canon, maximum control for heavy telephoto lenses

If you work with long focal lengths like the Canon EF 400mm f/2.8 L IS III or the Canon RF 600mm f/4L IS USM (2021), you know the situation: the glass is brilliant, but the standard lens foot often feels more like a compromise. The Kirk LP-69 replacement lens foot addresses exactly this and replaces the original foot with a precisely machined, significantly more stable solution that also serves as a full-fledged lens plate with an integrated 38 mm dovetail quick-release profile.

The LP-69 is designed to guide heavy super-telephoto lenses safely, in balance, and with repeatable precision on the tripod head, without you constantly feeling that everything is a bit wobbly. In short: more stability in the viewfinder, less fiddling with the tripod clamp.

Developed specifically for the following lenses, a precise fit instead of a compromise

The Kirk LP-69 is not just some generic foot, but is specifically designed for the following lenses and tested in real-world use:

• Canon EF 400mm f/2.8 L IS III
• Canon EF 600mm f/4 L IS III USM
• 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)
• Canon RF 100-300mm f/2.8 L IS USM (2023)

Thanks to this exact fit, the replacement foot sits solidly and without play on the lens collar. Balance on the tripod head is noticeably improved, especially during panning and longer exposure times. At the same time, you can still attach the lens hood in its transport position, so you can maintain your familiar handling.

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

The LP-69 is made in the USA from high-quality 6061-T6 aluminum. This material is a classic in the professional sector because it offers a very good ratio of stability, weight, and machinability. The foot is precisely milled and then black anodized, resulting in a durable, unobtrusive surface that reduces reflections and visually matches Canon L lenses.

With a length of 14.6 cm, a width of 4.3 cm, and a height of 5.3 cm, the replacement foot offers sufficient contact area for a stable clamp without being unnecessarily bulky. The weight of only 142 g keeps the overall setup pleasantly light, especially when you are on foot a lot or frequently switch to handheld shooting.

With QD strap socket, quick carrying option for heavy telephoto lenses

The LP-69 has an integrated QD strap socket. This means you can snap a suitable carrying strap with QD anchors directly into the lens foot and carry your telephoto lens safely at its center of gravity instead of awkwardly holding it by the camera body. Especially over long distances or during sports or wildlife shoots, this is a real comfort gain.

To use this QD strap socket, you need a strap with matching QD anchors. You can find more information here.

The LP-69 is designed to be QD compatible so that the lock engages firmly and can only be released intentionally. This allows you to switch flexibly between tripod use and carrying configuration without constantly loosening screws or resorting to improvised solutions.

Arca-style compatible, integrated 38 mm quick-release profile

The Kirk LP-69 features an integrated 38 mm dovetail quick-release profile that is Arca-style compatible. You therefore no longer need to screw an additional lens plate underneath; the foot itself serves as a stable, continuous quick-release base. This reduces overall height and potential points of failure.

According to the manufacturer, the clamping profile fits a wide range of common 38 mm quick-release clamps, including:

• ProMediaGear clamps
• Wimberley clamps
• Arca-style compatible (according to the manufacturer) 38 mm quick-release clamps
• Really Right Stuff screw clamps
• Really Right Stuff lever clamps
• Jobu Design clamps
• Acratech lever clamps
• Acratech screw clamps
• Markins clamps
• Kirk clamps
• FlexShooter screw cross clamp

If you already use an ARCA-based system, you can integrate the LP-69 directly into your workflow. Notes and further information on ARCA-compatible solutions can be found here.

In addition, the dovetail profile allows you to attach accessories such as flash brackets with a 38 mm clamp. This lets you expand your setup modularly without stacking additional adapter plates.

Thought-out details: threads, safety stop screws, and everyday handling

On the underside of the Kirk LP-69 you will find two standard photo threads:

• 1 x 3/8" UNC photo thread
• 1 x 1/4" UNC photo thread

This allows you, when needed, to mount the foot directly on a tripod, monopod, or another quick-release base that does not use ARCA. This flexibility is useful if you work with different systems or want to continue using existing equipment.

Also integrated are 2 safety stop screws. These prevent the lens foot from accidentally sliding out of the quick-release clamp if the clamp is not fully opened. Especially with heavy telephoto lenses, this is an important safety feature that can prevent expensive falls in case of doubt.

Despite its robust construction, the LP-69 remains comfortable in the hand. Many users naturally use the foot as a carrying handle when briefly repositioning the lens or taking it out of a backpack. The shape is designed so that you can grip the lens in a controlled way without it feeling “front-heavy.”

Practical benefits for sports, nature, and wildlife photography

Especially in sports and wildlife photography, where the Canon EF 600mm f/4 L IS III USM or Canon RF 800mm f/5.6L IS USM (2022) are often used on monopods or gimbal heads, the lens foot plays a crucial role. A stable, well-balanced foot ensures smooth panning, fewer vibrations, and reliable repeatability when repositioning.

The Kirk LP-69 supports you by optimally distributing the weight of the lens and maximizing the connection to the quick-release clamp. This lets you focus more on the moment instead of worrying whether everything is really secure. And yes, we know that it is precisely these small things that often make the difference in the end.

Technical specifications of the Kirk LP-69 at a glance

• Product type: replacement lens foot / lens foot for Canon super-telephoto lenses
• Compatible Canon EF lenses: Canon EF 400mm f/2.8 L IS III, Canon EF 600mm f/4 L IS III USM
• Compatible Canon RF lenses: 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), Canon RF 100-300mm f/2.8 L IS USM (2023)
• Material: 6061-T6 aluminum
• Surface / finish: black anodized
• Length: 14.6 cm
• Width: 4.3 cm
• Height: 5.3 cm
• Weight: 142 g
• Integrated system: 38 mm dovetail quick-release profile, ARCA compatible
• Clamping profile suitable for: ProMediaGear, Wimberley, Arca-style compatible (according to the manufacturer) 38 mm quick-release clamps, Really Right Stuff screw clamps, Really Right Stuff lever clamps, Jobu Design, Acratech lever clamps, Acratech screw clamps, Markins, Kirk clamps, FlexShooter screw cross clamp
• QD strap socket: yes, one, QD compatible
• Threaded holes on underside: 1 x 3/8" UNC photo thread, 1 x 1/4" UNC photo thread
• Safety mechanism: 2 safety stop screws

Ultimately, the Kirk LP-69 replacement lens foot is aimed at anyone who wants to use their Canon EF and Canon RF super-telephoto lenses not only safely, but also comfortably and efficiently. If you frequently work with long focal lengths and are looking for a stable, well thought-out foundation for your setup, this foot is a very serious option.