The Fotodiox Vizelex Cine ND Throttle lens adapter allows the use of Nikkor F-mount G-type DSLR lenses on modern mirrorless cameras and features an integrated variable neutral density filter that provides adjustable light reduction from 2 to 8 stops, equivalent to ND4 to ND256. This adapter is designed for professional video and film production, equipped with a geared rotation ring for precise ND filter adjustments and compatibility with follow-focus accessories, ensuring smooth operation in dynamic shooting situations. Made from high-quality materials, it includes precision all-metal components and nickel-plated brass mounts for a secure, durable connection between lens and camera. The adapter supports reliable performance in various lighting conditions and enables greater creative control over exposure without changing camera settings. Weighing approximately 227 grams, it maintains a compact and robust profile, making it suitable for on-the-go filmmakers and photographers seeking enhanced versatility in their equipment setup.