INON 90 Mega Float Arm 160

The Inon 90 Mega Float Arm 160 is designed to improve buoyancy control in underwater imaging setups. It offsets negative weight from housings, strobes, and video lights, supporting stable positioning during dives. The arm delivers 437 g (≈0.96 lb) buoyancy while maintaining a low weight of 219 g (≈0.48 lb) in air. Its hollow construction increases lift efficiency without adding unnecessary mass. With an effective length of 160 mm, this arm fits compact to mid-size configurations. The full length is 174 mm, including ball joints. This model provides approximately 20% more buoyancy compared to earlier S/M versions. It is suited for divers requiring controlled balance without increasing overall arm length significantly. For larger setups, a longer arm with increased buoyancy may be more suitable.

Detachable ball joints and optional length extension configuration

 The ball joints are detachable and can be replaced with optional longer FA Ball 45 units. This increases the effective arm length and changes the positioning range of the setup. When two FA Ball 45 units are installed, the arm length increases by 40 mm. This allows wider spacing between lighting and camera, without replacing the full arm. This modular design allows adjustment of arm length and positioning depending on the rig configuration.

Mounting strobes, lights or lensholders

Each ball joint includes a 3/8-inch female thread, which allows you to attach the YS BALL adapter or other accessories, such as lighting devices or action cameras easily. This simplifies the configuration and reduces the number of separate components.

The arm also supports up to two side-mounted lens holders. This enables compact integration of wet lenses within the same arm system.