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Really Right Stuff B2-Pro-II 60mm Screw-Knob Pro Clamp

BH #REB2PROII • MFR #B2-PRO-II
Really Right Stuff B2-Pro-II 60mm Screw-Knob Pro Clamp
Key Features
  • Captive Screw Knob with Safety Stop
  • Arca-Swiss Style QR Plate Compatible
  • Safety Stop Relief Grooves
  • Precision Bubble Level
The B2-Pro-II 60mm Screw-Knob Pro Clamp by Really Right Stuff is compatible with most Arca-Swiss style camera plates, camera bars, and multi-purpose rails. It features a captive knurled knob for a better grip when applying clamping pressure, plus safety stop relief grooves to prevent plates with safety stops from accidentally slipping out when loosened. The integrated bubble level ensures precise horizontal orientation. The base features a rosette design for secure mounting to compatible ball head and other device, and will prevent twisting at the coupling point between the clamp and head over time. A legacy tongue-and-groove adapter is available separately. The top of the clamp features three threaded counter-sunk sockets, which accept 1/4"-20 and metric 6 (M6) threaded screws for mounting to a ball head stem. The outer sockets are spaced 30mm apart. The center 1/4"-20 socket is also threaded 3/8"-16 on the bottom to allow it to mount from beneath to a 3/8"-16 male stem.
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Really Right Stuff B2-PRO-II Overview

  • 1Description
  • 2Compatibility
  • 3Multiple Mounting Options
  • 4Laser-Engraved Scale
  • 5Precision Bubble Level

The B2-Pro-II 60mm Screw-Knob Pro Clamp by Really Right Stuff is compatible with most Arca-Swiss style camera plates, camera bars, and multi-purpose rails. It features a captive knurled knob for a better grip when applying clamping pressure, plus safety stop relief grooves to prevent plates with safety stops from accidentally slipping out when loosened. The integrated bubble level ensures precise horizontal orientation. The base features a rosette design for secure mounting to compatible ball head and other device, and will prevent twisting at the coupling point between the clamp and head over time. A legacy tongue-and-groove adapter is available separately. The top of the clamp features three threaded counter-sunk sockets, which accept 1/4"-20 and metric 6 (M6) threaded screws for mounting to a ball head stem. The outer sockets are spaced 30mm apart. The center 1/4"-20 socket is also threaded 3/8"-16 on the bottom to allow it to mount from beneath to a 3/8"-16 male stem.

Compatibility
  • Really Right Stuff ball heads
  • Arca-Swiss current model ball heads
  • Manfrotto 468 ball head
  • Manfrotto 468RC2 ball head
  • Manfrotto 488RCO ball head
  • Manfrotto 469 ball head
  • Manfrotto 469RC ball head
Multiple Mounting Options
Featuring one threaded 3/8"-16 recessed center socket flanked by two threaded 1/4"-20 recessed center sockets, the RS-Pro-II can be mounted from beneath directly on a tripod head platform, or from above using 1/4"-20 or M6 screws. The base design allows the B2-PRO-II to mount directly on products rosette-type platforms.
Laser-Engraved Scale
For precise, repeatable setups
Precision Bubble Level
Incorporated spirit bubble level ensures proper horizontal orientation
UPC: 818413023062

Really Right Stuff B2-PRO-II Specs

Assembly
Locking Method
Screw Knob
Clamp Range
2.36" / 60.00 mm
Assembly Dimensions
W: 4.4 x H: 1.0" / W: 112.0 x H: 25.0 mm
General
Quick Release Type
Arca-Type
Tripod Mounting Thread
2x 1/4"-20 Female
1x 3/8"-16 Female
Leveler
1x Bubble Level
Material
Aluminum
Weight
4.4 oz / 125 g
Packaging Info
Package Weight
0.31 lb
Box Dimensions (LxWxH)
4.95 x 4.1 x 1"

Really Right Stuff B2-PRO-II Reviews

See any errors on this page? Let us know

Is this compatible with Manfrotto MHXPRO-BHQ2?

Is this compatible with Manfrotto MHXPRO-BHQ2?
Asked by: Brad
You may consider purchasing the Desmond DBAD Female to Male Boss Adapter for Select Manfrotto Heads, B&H # DEDBAD, to connect the Really Right Stuff B2-Pro-II 60mm Screw-Knob Pro Clamp to the Manfrotto XPRO Magnesium Ball Head with 200PL-14 Quick Release Plate.
Answered by: Manzell L
Date published: 2023-01-03

Can I mount this to a video tripod, like a ...

Can I mount this to a video tripod, like a Sachtler or Miller?
Asked by: Paul
Whether you can mount the Really Right Stuff B2-Pro-II 60mm Screw-Knob Pro Clamp on your existing head will depend on the connecting method on your head. This clamp features one threaded 3/8"-16 recessed center socket flanked by two threaded 1/4"-20 recessed center sockets, the RS-Pro-II can be mounted from beneath directly on a tripod head platform, or from above using 1/4"-20 or M6 screws.
Answered by: Yaakov
Date published: 2023-05-25

Thank you everyone for your response. But I'm ...

Thank you everyone for your response. But I'm still wondering: if I mount this on a flat surface, and that surface extends out past the bottom of the clamp (not to the knob, of course), does the diameter of the shaft allow for clearance so the clamp sits firmly on the flat surface? Sometimes I use clamps on something other than ball heads. Thanks again.
Asked by: John
Yes, the bottom surface of the Really Right Stuff B2-Pro-II 60mm will seat flat on the camera support plate system similar to BH #PLPMPMT1009. However, the knob can not be under the same plate surface because it's larger than the clamp high. The knob is 25mm while the plate is only 18mm. I will recommend the BH #REB2LRII with the Level since this part is the same high as the clamp and won't interfere if you place your plate on a flat surface.
Answered by: Llinelva D
Date published: 2023-10-08

Does the diameter of the shaft extend below the ...

Does the diameter of the shaft extend below the bottom plane, like some of the cheaper clamps that people have complained about?
Asked by: John
The Really Right Stuff B2-Pro-II 60mm Screw-Knob Pro Clamp (B&H# REB2PROII) is made with exacting precision and it will fit the intended heads without having any problem like the one you mentioned: Really Right Stuff ball heads Arca-Swiss current model ball heads Manfrotto 468 ball head Manfrotto 468RC2 ball head Manfrotto 488RCO ball head Manfrotto 469 ball head Manfrotto 469RC ball head
Answered by: Yoni
Date published: 2021-10-19

Will this fit on a IFootage Cobra 3 C180F-P?

Will this fit on a IFootage Cobra 3 C180F-P?
Asked by: Joel
Had asked if the Really Right Stuff B2-Pro-II 60mm Screw-Knob Pro Clamp would fit into the IFootage Cobra 3 C180F-P but the response I received was that the Really Right Stuff B2-Pro-II 60mm Screw-Knob Pro Clamp could screw in to itself. Suspect you meant into the IFootage Cobra 3 C180F-P.
Answered by: Joel
Date published: 2023-05-10

What's the distance between the two outer ...

What's the distance between the two outer mounting holes? I wanna mount this plate on a 322 ball head.
Asked by: Juano
The two outer mounting holes on the RRS B2-Pro II 60mm Screw-Knob Pro Clamp are 30mm apart.
Answered by: Kirk
Date published: 2022-04-26

Can this be mounted on a monopod. Then attach the ...

Can this be mounted on a monopod. Then attach the wimberly monogimble?
Asked by: S
The Really Right Stuff B2-Pro-II 60mm Screw-Knob Pro Clamp can be attached to a monopod. The Wimberley MH-100 MonoGimbal Head for Monopods has a 3/16"-16 threaded socket and an Arca-Swiss Style dovetail. You could use the TTS clamp, but it is not required to use the Wimberley MH-100 MonoGimbal.
Answered by: Lawrence C
Date published: 2023-10-26
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