The black Pro Mini 30NS with Screw Knob Clamp from Photo Clam is a CNC-machined aluminum head with an Arca-type clamp that opens and closes by turning the knob. The 3.3"-tall ball head weighs 9.7 oz and has a load capacity of 44.1 lb. Furthermore, the main knob unlocks the ball movement, and a notch in the body allows you to place the camera in a 90° vertical position. A separate pan lock allows you to rotate the camera 360° independently from the ball movement. A tension control located on the main knob of the ball head allows you to dial-in how much or how little tension you want on the ball. In addition, the CNC-machined aluminum head includes a 42mm quick release plate with a 1/4"-20 camera mounting thread.

Load Capacity: 44.1 lb    Height: 3.3"    Weight: 9.7 oz    Arca-Type Compatible    Screw Knob Clamp    360° Pan with Independent Pan Lock    Tension Control    90° Tilt    CNC-Machined Aluminum    Includes 42mm Quick Release Plate

Related Questions and Answers

Q: 1. What is the diameter of the top plate?

A: The manufacturer does not mention this information. This is a Arca Swiss mount so you will need a Arca style plate for compatibility. https://bhpho.to/3q0MG1v

Q: 2. Are the two clamping jaws of this clamp strong enough to securely hold a variety of equipments?

A: Yes Really Right Stuff B2-Duo Sliding Screw-Knob Clamp (60mm) jaws are strong enough to hold a variety of equipment.

Q: 3. 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.

A: 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.

Q: 4. how wide are the three strap bosses? Will a 1" strap fit?

A: The side lugs of the Really Right Stuff B2-FABN Screw-Knob Clamp with Strap Bosses (38mm) will fit a 0.70" strap, the front lug is 0.98" max, and both are 0.125" thickness maximum.

Q: 5. Is this compatible with Manfrotto MHXPRO-BHQ2?

A: 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.

Q: 6. I want to mount this on the top, moving rail of a Manfrotto 454 Macro Focusing rail to accommodate a l-bracket attachment of the camera body. Does the tightening knob clear the bottom of the clamp when mounted on a flat surface? Also, will the anti-twist tabs fit into the 1/4" slot in the 454 top rail?

A: Good question. Thank you. There is not enough clearance to accommodate functionality of the knob when attempting to mount it with the anti-twist tabs into the 1/4 20 slot.

Q: 7. Can this be mounted on a monopod. Then attach the wimberly monogimble?

A: 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.

Q: 8. This rrs clamp work with Manfrotto tripod?

A: This clamp will work but you will need to fit your Manfrotto tripod/head with an Arca Swiss clamp. Click the link below to view; https://bhpho.to/3jV48Pb

Q: 9. Hi there, wanted to know will this rrs panning clamp work with FLM CB-38FTR Professional Series Ball Head??

A: Yes they will work together.

Q: 10. I have RRS plate for Fuji XT-1. It doesn't fit my new Fuji XT-2.Any suggestions??

A: RRS plates are model specific. It's not the fault of RRS that the plat for XT-1 doesn't fit the XT-2. Small differences in the manufacturer's design equate to design differences in dedicated accessories such as camera plates. The width of the chassis, length of the chassis, offset location of the tripod screw hole, and the location of battery doors and ports all mean that the plate has to be redesigned for the new model. It's the unfortunate price for the ultimate in stable support. If you want a plate that is applicable to a variety of platforms, you'll need to use a generic Arca-Swiss style plate. The result will be less stability when the ball head is put in portrait mode.