Really Right Stuff B2-DUO 60mm Sliding Knob Clamp

The Really Right Stuff B2-DUO 60mm Sliding Knob Clamp is a dual-dovetail, Arca-type quick-release clamp engineered for high-precision photographic setups, long lens support systems, and custom mounting rigs. Precision-machined in the USA from solid aircraft-grade aluminum, it features a dual-jaw design that allows it to attach onto an Arca-style dovetail rail while simultaneously accepting an Arca-compatible camera plate or accessory bar on top. Its smooth screw-knob mechanism provides fine tension control and secure clamping power, while laser-engraved index marks enable accurate positioning along nodal rails or multi-axis camera rigs.

Key Features and Specifications

* Dual-Dovetail Jaw Architecture: Clamps onto an underlying Arca-style dovetail rail while providing a top-facing clamp for camera plates, L-brackets, or accessories.
* Precision CNC Machined: Crafted from lightweight 6061-T6 aluminum with a durable, scratch-resistant hard-anodized black finish.
* Ergonomic Screw-Knob Operation: Low-profile captive screw knob provides reliable manual locking force and exact clamp adjustment.
* Laser-Engraved Centering Scale: Etched millimeter alignment marks along the clamp jaw ensure rapid, repeatable positioning.
* Universal Arca-Type Compatibility: Compatible with standard Arca-Swiss style quick-release plates, L-brackets, and dovetail rails from major brands.
* Safety Stop Relief Channels: Integrated grooves accommodate safety stop screws on sliding plates to prevent accidental slippage.

Condition and Included Accessories

* Included Accessories: RRS B2-DUO 60mm Sliding Knob Clamp (quick-release camera plate not included).