This Ultralight Ball Clamp with 1/4"-28 Bolt & Red T-Knobfrom Ultralight Ball Clamp with 1/4"-28 Bolt & Red T-Knobis used to connect light arms to underwater camera rigs, or arm sections to each other, using 1" mounting balls. This clamp measures 1.5" between the centers of the ball recesses and is built around a 1/4"-28 fine thread bolt. The splashy red anodized T-Knob makes tightening and loosening the clamp easy, and it can be useful to the cinema industry for color-coding camera rigs.

Anodized T-Knob    Useful for Color-Coding Camera Rigs    1.5" Center to Center

Related Questions and Answers

Q: 1. Will this support a Sony a7riii and a 24-70 f4 lens?

A: Yes, but a bigger head with a bit higher load capacity would be a better fit.

Q: 2. Does this compatible with Gitzo GT3543XLS Systematic Series 3 Carbon Fiber Tripod ?

A: Yes. The tripod uses a 3/8-16 threaded stud. The RRS BH-55 uses a 3/8-16 threaded insert. They work great together.

Q: 3. Will this work with the peak design pro plate?

A: Yes, it will.

Q: 4. Looking to use the BH-40 Ball Head with the Wimberly Arca Sidekick with the new OM 15-600 lens @ 4.55 lbs. Will this work?

A: Yes, Really Right Stuff BH-40 Ball Head with Full-Size Screw-Knob Clamp has a standar arca clamp which is fully compatible with Wimberley Arca Sidekick Ball to Gimbal Head Adapter.

Q: 5. Has anyone had any experience with the FB-52 ballhead?

A: The majority of Sunwayfoto ball-heads sold by B&H have 4 to 5* reviews. Most of their other products have the same ratings. We feel that you will be satisfied with your purchase of this head.

Q: 6. Will this ballhead hold nikon d800 plus 80-400 mm lens?

A: The combined weight of the Nikon D800 DSLR camera and the Nikon is 5.43 lbs. As such, the would work to support your camera/lens setup. While it is personal preference, as a safety precaution, I typically like recommending tripod heads with a maximum load capacity that is 3x higher than the combined camera/lens setup weight. As such, my personal recommendation would usually be for the Really Right Stuff BH-40 Ball Head with B2-mAS Mini Clamp, B&H # REBH40PRO, or if you needed a head with a smaller base diameter, the Really Right Stuff BH-30 Ball Head with Mini Screw-Knob Clamp, B&H # REBH30PRO, is a good option, but yes, the Really Right Stuff BH-25 Ball Head would work for your usage needs.

Q: 7. will this ballhead hold a niko d800 and 80-400 lens?

A: That lens and camera weigh nearly 6 lbs, which is too close to the load capacity of 8.8 lbs. You can never have too much capacity. This RRS ballhead would be a much better option: https://www.bhphotovideo.com/c/product/1301053-REG/really_right_stuff_bh_30_pro_bh_30_ballhead_with_mini.html

Q: 8. Is the Kirk BL-D800 L-Bracket compatible with the Really Right Stuff BH-30 with screw knob? I've already got the kirk plate for my larger Kirk ballhead, but I'm looking for a lighter travel head and I think this one will fit the bill assuming the plate will work with it.

A: Yes.

Q: 9. Comparing this ball head to the smaller FB-44III ball head (BH #SUFB44III) shows this has a lower load capacity (44 lb vs 66 lb). Is this correct? Shouldn't this larger version have the greater load capacity?

A: While it may seem the FB-52 should have a larger maximum load capacity, according to Sunwayfoto's website, the Sunwayfoto FB-52 Ball Head has a maximum load capacity of 20 kg, which is 44.1 lbs. The Sunwayfoto FB-44III Ball Head has a maximum load capacity of 30 kg, which would be 66.1 lbs. If you need more assistance, you may contact Sunwayfoto directly by e-mailing them at service@sunwayfoto.com.

Q: 10. Does this come with an arca type QR plate?

A: No, i'm sorry this head does not come with a plate. Please click the link below to view some possibilities; https://bhpho.to/2MPa6UH