Arms

Ball arms for underwater camera trays and lighting setups

Ball arms consist of solid segments with ball joints at both ends. They are joined together with clamps to build a modular rig that holds strobes or video lights in adjustable positions.

Arms are available in multiple lengths, making it possible to customise a rig layout for wide-angle lighting, macro use or balanced dual-strobe systems. For background information, see the blog the perfect arms for your underwater camera.

Combining arms with clamps and adaptors

Ball arms require clamps to connect them to each other and to the tray of a housing. These joints allow positioning while keeping the system stable at depth.

• Use clamps to lock or adjust the angle between arms
• Combine different arm lengths for precise strobe placement

Connecting arms to trays and lights

At the tray side, a base adaptor or start ball is needed to mount the first arm securely to the housing tray. This provides a solid anchor point for the rig.

At the strobe or video light side, an adapter for strobe or light is required. Together with clamps, these parts ensure reliable connections across the entire system.

Advantages of modular ball arm systems

Because ball arms are available in different lengths, they can be adapted to any underwater lighting requirement. A compact system offers manoeuvrability, while long arms provide greater separation of light sources.

Compared to flex arms, ball arms deliver greater rigidity and stability, which is preferred for heavier strobes and larger video lights. This modular approach lets users fine-tune light angles for both wide-angle and macro photography.

• Ball arms connect trays, clamps and lights
• Lengths vary for wide-angle or macro setups
• Require clamps to link and position arms
• Base adaptors attach arms to the housing tray
• Light adapters connect strobes or video lamps

Complete sets with ball arms

Instead of selecting each component separately, you can also choose from arm packages. These sets include trays, handles and ball arms, ensuring compatibility for stable underwater lighting rigs.