Kirk QRC-1SQ quick release coupling

Kirk QRC-1SQ quick-release clamp for precise camera mounting

Sometimes a seemingly insignificant part determines whether your setup just somehow holds together or whether it really sits cleanly, without play and with repeatable precision. The Kirk QRC-1SQ quick-release clamp clearly belongs in the second category. Compact, lightweight, surprisingly robust and consistently designed for reliable clamping, it is intended for anyone who doesn’t want to leave their camera equipment to chance.

Arca-style compatible for 38 mm dovetail profiles

According to the manufacturer, the QRC-1SQ is Arca-style compatible and securely accepts 38 mm dovetail profiles. In practice this means you can clamp common ARCA-compatible camera plates and lens plates directly, without tinkering or stacking adapters. The clamp uses a precise screw-clamping mechanism that gives you finely adjustable clamping force and does not reach its limits quickly, even with heavier setups.

Compatible with Really Right Stuff, Wimberley, Pro Media Gear and Kirk dovetail

So you don’t have to spend time guessing whether your existing plates will fit, the QRC-1SQ quick-release clamp is designed for several established dovetail standards. It accepts Arca-style compatible 38 mm dovetail profiles, Really Right Stuff dovetail, Wimberley dovetail, Pro Media Gear dovetail and of course Kirk dovetail. So if you already have a collection of plates and replacement feet in your cupboard, there’s a good chance you can simply keep using them here.

Compact dimensions and low weight for flexible setups

Despite its stability, the Kirk QRC-1SQ remains pleasantly handy. With a length of about 7.02 cm, a width of around 2.54 cm and a height of about 2.1 cm, it integrates discreetly into your setup without adding unnecessary bulk. The weight of only about 45 g makes it interesting for anyone who wants to keep their equipment as light as possible, for example with travel tripods, compact macro rails or lightweight nodal point adapters.

Screw clamp for controlled and secure fixation

Clamping is achieved via a classic screw clamp, which in practice proves to be very reliable and easy to control. The clamping jaw length of about 2.54 cm provides a stable contact surface so that the mounted plate sits firmly in the clamp. Especially for macro shots, telephoto lenses or when working with rails, this steady, controlled fixation is worth its weight in gold, as it significantly reduces camera shake and unwanted play.

Center mark with engraving for precise alignment

For precise alignment of the camera or lens, the QRC-1SQ features a neatly executed center mark in the form of an engraving. This marking helps you position your camera centrally on a rail or head, which is particularly useful when you use recurring setups or want to arrange multiple components symmetrically. You don’t have to estimate; you can rely on a clear reference.

Anti-twist protection with receptacle for square base

To prevent mounted components from unintentionally rotating, the quick-release clamp has integrated anti-twist protection with a receptacle for a square base. In practice this means that when you combine the QRC-1SQ with a matching counterpart, everything fits together form-locking and twist-proof. This is a real advantage, especially with longer focal lengths or when using double dovetail rails, because the setup does not slowly “shift out of alignment”.

Four possible mounting positions for flexible orientation

In combination with the separately available QRC-2.6SB, the QRC-1SQ clamping module becomes a practical double clamp. The two clamps can be mounted in four different positions with twist-proof alignment, each offset by 90 degrees. This is particularly useful when you work on double dovetail rails or double plates and want to adapt the orientation of the clamp precisely to your way of working. For example, you can build a simple macro rail or a nodal point adapter without having to invest in a complex system right away.

Use as macro rail or nodal point adapter

With the right rail, the QRC-1SQ quickly becomes more than just a simple clamp. Together with the QRC-2.6SB, you can create an uncomplicated macro rail that allows you to move your camera smoothly forwards and backwards. Likewise, you can build a functional nodal point adapter that accepts both camera plates with a 38 mm clamping profile and lens plates, replacement feet and other accessories with a 38 mm dovetail profile. This creates a modular system that you can expand and adapt as needed.

Sturdy construction made of black anodized aluminum

The QRC-1SQ quick-release clamp is made of high-quality aluminum and is black anodized. This finish is not only visually discreet, it also protects the material from corrosion and wear. In tough everyday photographic use, whether outside in drizzle or in the studio among stands and clamps, this robust coating pays off. The combination of low weight and high stability makes the clamp a durable component in your setup.

Continuous 1/4" UNC photo thread on the underside

On the underside there is a continuous 1/4" UNC photo thread. This allows you to easily mount the QRC-1SQ on many tripods, heads, rails or adapters that use the classic 1/4" photo thread. The continuous design gives you additional options for mounting, for example when you want to use longer screws or special adapters.

Scope of delivery with matching screw and hex key

So you can get started right away, the QRC-1SQ quick-release clamp comes with a 1/4" x 7/8" UNC countersunk screw. A 5/32" hex key is also included. You don’t have to rummage through your toolbox first; you can mount the clamp and adapt it to your system immediately after unpacking.

Practice-oriented design for photographers and videographers

In daily use it becomes clear that the QRC-1SQ doesn’t just look good on paper. The combination of ARCA-compatible 38 mm dovetail profile, precise screw clamp, center mark and anti-twist protection makes it a versatile tool for photographers and videographers. Whether you are optimizing a compact travel tripod, refining a macro setup or building a simple nodal point adapter for precise perspectives, the quick-release clamp integrates unobtrusively but reliably into your system.