Why should you invest in a quick-release system? Because screwing your camera or lens onto a platform with standard ¼"-20 screw is tedious and insecure. Not only is it a hassle to screw your gear onto that platform, but once installed the camera or lens is free to rotate; there's nothing to prevent it from coming loose. Why invest your money in a tripod and tripod head only to compromise your shots with an insecure connection between camera and head? Instead, adopt the Really Right Stuff quick-release system.
The Really Right Stuff quick-release system is based on the Arca-Swiss standard and has two parts: a quick-release clamp and a quick-release plate. You always need both pieces of the system. The clamp will stay on your tripod head/accessory all the time, and the plate will stay on your camera all the time. You will need to purchase a separate quick-release plate for each camera or collared, telephoto lens that you want to mount in the quick-release clamp on your tripod head.
Clamp jaws open and close in one of two ways: by twisting a knurled knob on our tried & true screw-knob clamps; or by flipping a single lever on our innovative, patented lever-release clamps. The graceful Stainless Steel S-shaped cam-locking lever provides desirable benefits over traditional screw knob clamps.
The B2 LR II has dual mounts: center socket is countersunk on top but also threaded 3/8"-16. Mount by spinning onto an exposed threaded post or with flat head screw from above (accept M6 or ¼"-20, not 3/8").
These clamps are appropriate for mounting on:
Any head or platform with exposed 3/8"-16 threaded post
Can drop onto a female socket tapped ¼"-20 (for any RRS head) or metric 6 (for all others; all screws sold separately)
Any head or platform with exposed ¼"-20 threaded post - install a reducer bushing into the socket hole of the clamp
NOTE: Starting in 2012, the Really Right Stuff B2 LR II clamp automatically adjusts to accept all Arca-Swiss style plates except Arca-Swiss P0 Slidefix plates and plates made by Novoflex. Choose a screw-knob clamp if you have Novoflex plates.
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.
Bullseye Spirit Level
Laser Engraved for exact and repeatable positioning
What's in the Box?
B2 LR II Clamp only, mounting hardware and tools not included
Jaw Length: 2.4" / 60mm
Width: 3.4" / 86mm
Height: 0.6" / 15mm
Weight: 5.3 oz / 150g
Center Hole threaded 3/8"-16
Outer Holes threaded ¼"-20 spaced 30mm apart on center
Ballheads, Fluid Video heads and other tripod heads with 3/8"-16 stud
Studio stands with 3/8"-16 stud
Tripod and Monopod platforms with 3/8"-16 stud
Any accessory with a 3/8"-16 stud
What else do I need?
Mounting plates for all camera bodies you wish to quick release within the clamp. For a full list of our available items, click HERE.
Mounting plates for all lenses with tripod collars and mounting feet you wish to quick release within the clamp. For a full list of our available items, click HERE.
Mounting plates for any other accessories you wish to quick release within the clamp. For a full list of our available multi-purpose rails, click HERE.