Ulanzi CA05 75mm Rotatable Collar Adapter Ring

The Ulanzi CA05 75mm Rotatable Collar Adapter Ring is a lightweight yet robust lens collar tripod mount designed to improve balance and stability when working with heavy lenses. Featuring smooth rotation for quick horizontal-to-vertical switching and Arca-Swiss compatibility, it protects your camera mount while delivering professional-level control.

The Ulanzi CA05 is a precision-engineered lens collar tripod mount built specifically for lenses with a 75 mm diameter. When using larger or heavier lenses, mounting directly to the camera body can strain the bayonet and compromise stability. The CA05 shifts the load to the tripod, improving balance, protecting your camera mount, and ensuring steadier shots in both studio and outdoor environments.

A built-in rotary mechanism allows seamless switching between landscape and portrait orientation without removing your camera from the tripod. A large, ergonomic locking knob enables fast, accurate rotation with minimal effort, saving time during dynamic shooting sessions.

The integrated Arca-Swiss–compatible plate allows for quick mounting on most tripod heads, sliders, and gimbals. For expanded compatibility, the base also includes 1/4"-20 and 3/8"-16 threaded mounts, making it suitable for a wide range of supports.

With its adjustable platform height, the CA05 adapts easily to different lens designs, while the semi-circular collar design allows installation without removing the lens from the camera. Constructed from scratch-resistant aluminum and steel, this mount supports equipment weighing up to 5 kg, yet remains impressively lightweight for portable setups.

Key Features:

• Lens collar tripod mount for 75 mm diameter lenses
• Improves balance and stability with heavy lenses
• Protects the camera bayonet from excessive load
• Smooth rotatable design for quick portrait/landscape switching
• Large locking knob for easy, precise rotation
• Arca-Swiss compatible mounting plate
• Additional 1/4"-20 and 3/8"-16 threads for wide compatibility
• Adjustable platform height for different lens models
• Semi-circular design allows mounting without removing the lens
• Durable, scratch- and corrosion-resistant metal construction
• Supports loads up to 5 kg
• Lightweight and travel-friendly design

• 1 × Ulanzi CA05 75mm Rotatable Lens Collar Adapter
• 1 × Hex (Allen) Wrench

• Lens Compatibility: 75 mm diameter
• Materials: Aluminum, Steel
• Load Capacity: Up to 5 kg
• Tripod Threads: 1 × 1/4"-20 (female), 1 × 3/8"-16 (female)
• Mounting Screw: 1 × 1/4"-20
• Dimensions: 112.7 × 66.5 × 83.6 mm
• Weight: Approx. 207 g