ENHANCED DURABILITY - The robust cage protects your Sony Alpha a7R IV, ensuring longevity and safeguarding against accidental bumps and scratches during rigorous shooting conditions. FULL COMPATIBILITY - Seamlessly integrates with your Sony Alpha a7R IV, providing unobstructed access to all ports and controls, maintaining camera functionality without compromise. ULTIMATE ADJUSTABILITY - Customize your rig with the 15mm LWS quick release rod base system, allowing for precise accessory mounting and optimal weight distribution for comfortable shooting. LIGHTWEIGHT DESIGN - Despite its comprehensive features, the cage and accessories maintain a manageable weight, preventing fatigue during extended use and ensuring easy portability at 1.2 lbs.