The Axler 12" Dual Mega Ball Clamp Arm with 1/4"-20 Accessory Mounting features four articulating joints with 1/4"-20 threaded studs and a 5" extension with threaded accessory mounting holes. The center lever on each clamp arm tightens or loosens that clamp. The threaded mounting ends feature a rubber-topped platform with a 1/4"-20 threaded stud. A thumbwheel rotates the studs, enabling you to tighten or loosen accessories.

Made from anodized aluminum, the mounting ends feature a ball joint system with an O-ring integrated into the ball. This allows you to tighten the clamp on the ball joints and lock it in place without having to overtighten the clamp. The ends can swing through more than 180° of arc and can be locked and held in place by merely tightening the center knuckle.

1/4"-20 Ends with Ball Joints    Center Lever Tightens Arms    5" Extension with Mounting Holes

This item is made by using two BCA-2 clamps and mounting a 5" extension bar (AS-5) between them. This creates a longer arm that also has four 1/4"-20 and four 3/8"-16 threaded mounting holes on the center bar for attaching accessories.

Made from anodized aluminum, this clamp is flexible and lightweight.

The integrated O-ring on the ball ends provides friction to hold the clamp in place, while allowing the ends to move when the clamp is loosened.

The O-rings also eliminate the need to overtighten the clamp, thus reducing stress on the clamp and extending the useful life of the clamp.

Related Questions and Answers

Q: 1. Compatible with SmallRig XT-4 cage and Atomos Ninja V combo?

A: Yes, the cage is covered in 1/4 20 mounting points

Q: 2. Can I use a third party extension if I want it to longer on certain occasions?

A: We are not aware of any third party extensions that would work for this product. If you needed a longer reach, you would need to look in to using a longer arm. Acebil offers the Multiple Function Magic Arm / Two Joint which is 15 inches instead of 12. https://bhpho.to/2Jz1bUN

Q: 3. Does the ball lock in place on this? If so, which lever/screw locks the ball position?

A: The upper lever, under the monitor, is the ball lock.

Q: 4. Is this sturdy enough to hold a DSLR like a Nikon D700 or D850?

A: The Neewer ST85 Super Clamp with Dual Ball Head Magic Arm is not strong enough to support a DSLR like the D700 or the D850. This one supports enough, BH #MA155035, (https://bhpho.to/3BeIGCU).

Q: 5. Ball head size? 20mm?

A: Correct, the ball portion of the SmallRig Magic Arm with Dual Ball Heads' (1/4"-20 Screws) ball heads is 20mm.

Q: 6. Are the locating pins Arri 1/4-20 standard? Will the pins match up to the SmallHD Cine 7?

A: Yes, the SmallRig Magic Arm with Dual Ball Heads (1/4"-20 Screw and NATO Clamp) has a standard Arri-Style 1/4"-20 pins and will attach to the bottom or sides of the SmallHD Cine 7 Touchscreen On-Camera Monitor (L-Series), B&H # SMMONCINE7.

Q: 7. what does it weigh?

A: Unfortunately, the manufacturer does not publish this specification. Please contact directly via email at: info@acebil.com

Q: 8. Are the locator pins spring loaded and retractable?

A: Yes, the SmallRig Magic Arm with Dual Ball Heads (1/4"-20 Screws) locator pins will retract.

Q: 9. What mating structures are on the end shown only in profile here (on the right side of the image: the larger diameter end)? A female 1/4-20? A female 3/8-16? Something completely different?

A: Both ends are 1/4 20 and there is a male to female converter that can be removed. The Converter has a 1/4 20 Female and a 3/8 female with a 1/4 20 reducer bushing.

Q: 10. Is it compatible with the Tilta EVF Extension Cable (B&H #TITAT11EEC60)?

A: The The Tilta EVF Extension Cable for Blackmagic Pocket Cinema Camera 6K Pro, 6K G2 & Cinema Camera 6K has 1/4"-20 threads on three sides, allowing for multiple mounting options. Technically, you should be able to use the Axler RECODO 11" Arm with 1/4"-20 to 3/8"-16 Anti-Twist Fitting. Tilta also offers an extension bracket specifically designed to work with the EVF extension cable: Tilta Tiltaing EVF Extension Bracket (Black), B&H #TITAEEBB