B2-FAB: 38MM Screw-Knob Clamp

The 38mm Screw-Knob Clamp from Really Right Stuff is a versatile tool that offers unparalleled stability and precision for photographers. It seamlessly integrates with your gear, serving as a crucial component of the quick-release system. What sets it apart is its compatibility with the RRS Dovetail Standard, Arca-Swiss compatible, a widely used industry standard that ensures maximum flexibility. With a 1/4"-20 threaded socket for easy attachment and the patented R-mount interface on the bottom surface, this clamp guarantees a secure, twist-free connection with equipment that has the R-mount rosette. This innovative design significantly reduces play and maintains a firm hold, even during rigorous use.

Distinguished by its screw-knob mechanism, the clamp delivers greater clamping force than lever-release models, allowing for precise tension adjustments and ensuring your equipment stays securely in place. Ideal for mounting cameras, lenses, and other accessories, it combines ease of use with the reliability demanded by professionals and enthusiasts alike.

As of 2020, all clamps feature an updated attachment style and will not sit flush with older ball heads. To resolve this, please refer to our Clamp Rosette Adapter.

Features

• Mini-clamp with integrated 1/4"-20 threaded socket and R-Mount Rosette, featuring 38mm jaws for optimal performance
• Designed for minimal clearance, weight, and compactness; the knob is "captive," ensuring it cannot be lost in the field
• Enables a double-sided clamp setup by mounting the B2-mAS back to back with the B2-FAB mini-clamp, ideal for applications requiring a sliding clamp platform
• Unique tab design on the B2-FAB ensures a twist-free mount into the B2-mAS's recessed rosette, providing secure and reliable assembly