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Really Right Stuff B2-40 50mm Lever-Release QR Clamp w/(1) 1/4"-20 Screw B2-40-LR-SOAR


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The B2-40-LR by Really Right Stuff was designed to provide a sturdy interface between your camera/lens and tripod. Attaching your camera/lens to a typical ¼”-20 screw is not only tedious and insecure, but also allows the camera/lens to freely rotate with nothing preventing it from coming loose. The B2-40-LR solves this problem with a 2-part system: a quick release clamp and a quick release plate.


  • Easy Top-Loading: In one quick action, the clamp can go from closed to fully open, allowing easy top-loading of Arca-Swiss-compatible quick-release camera and lens plates. No more lost shots while fumbling to feed the plates into the end of the clamp.
  • Visual Confirmation of Lock Position: You can readily observe if the lever is locked, half-open or fully open.
  • Low Profile: The lever does not protrude above or below the top or bottom of the clamp, and, in the closed position, the lever closely hugs the contours of the clamp. This makes it less of a "weed catcher" in the field and reduces the chance of being damaged in a fall.
  • Less Abrasive, No Twisting: The smooth contours of the lever are less abrasive than standard knurled knobs, and for those with arthritic hands, the graceful lever cams open and closed with just finger force.
  • Super Tough, Reliable: The Stainless Steel lever delivers a lifetime of wear and rides on a self-lubricating, wear-resistant bronze bearing surface. Delivers 50 lbs. of holding power under full compression (the fully closed position) with our plates. This is more than sufficient for any practical photographic application.
  • Laser Engraved for precise and repeatable plate alignment


  • Item ConditionNew
  • UPC818413023024
  • MPNB2-40-LR-SOAR

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