Ultralight AC-CSF-28 standard clamp with 1/4"-28 fine-thread for underwater camera systems and cinema rigs

Description

• Fine-thread version of Ultralight's standard 1" ball clamp, providing finer adjustment when tightening and positioning camera accessories.
• Uses a 1/4"-28 fine-thread 316 stainless-steel bolt for smaller, more precise tightening adjustments.
• Provides approximately 30° of side-to-side movement and measures 1½" between the centers of the two ball mounting holes.
• Works with standard 1" ball arms, adapters, strobes, lights, monitors and other accessories.
• Made from 6061-T6 aircraft-grade aluminum for strength and durability.
• Available with different knob colors to help identify or personalize your camera setup.
• Made in the USA and backed by Ultralight's lifetime warranty.

The AC-CSF-28 provides the same compact size and versatility as the standard AC-CSF while using a 1/4"-28 fine-thread bolt. The finer thread allows smaller adjustments as the clamp is tightened, making it a good choice for users who prefer more precise control over clamp tension and accessory positioning.

Coarse Thread or Fine Thread?

• AC-CSF — 1/4"-20 Coarse Thread: Ultralight's standard clamp and a great all-purpose choice for underwater and topside camera systems.
• AC-CSF-28 — 1/4"-28 Fine Thread: Provides finer adjustment when tightening the clamp for users who prefer more precise control.