FOTOCORE Butterfly Clamp AC03

The FOTOCORE Butterfly Clamp AC03 is a compact and reliable clamping solution designed for underwater photographers who need a secure, adjustable connection between arms, lights, and accessories. Its spring-loaded butterfly mechanism allows one-handed operation even with gloves, making rig adjustments fast and intuitive during a dive.

Built to handle the demands of saltwater environments, the AC03 uses 316 stainless steel for all springs, screws, and threads — the same grade used in marine hardware — ensuring long-term corrosion resistance. With a 43mm effective clamping length, it fits standard 25mm ball arms and is compatible with the full FOTOCORE modular system.

Compact and lightweight at just 96g in air, the AC03 adds minimal bulk to your rig while delivering the grip strength and build quality that serious underwater shooters expect. Ideal for securing strobes, video lights, and monitors in tight configurations.

Specifications

• Effective length: 43mm (1.7")
• Weight: 96g in air
• Spring, screw and thread: 316 stainless steel