Porthole Mark II Studio Upper Assembly

Porthole Studio Upper Assembly Professional Stability. Universal Fit. The Porthole Studio Upper Assembly is the Dry Side mechanical bridge designed for DSLR and mirrorless shooters. It offers a secure, centered connection to your lens without needing specialized threads, using a traditional clamp-on method that fits a wide range of lens barrel diameters. This component is perfect for users shooting with kit lenses or frequently switching between different focal lengths, providing a stable lens interface for the Mk II system. Reinforced Clamping: Upgraded with axial soft nylon thumbscrews that have embedded 6/6 nylon hex nuts to ensure maximum torque and long-lasting durability without harming your lens. MIIM Engineering: Precision 3D printed and cleaned with ionic air for a debris-free, professional presentation. Modular Threading: Features the Mark II-standard 100mm female thread for quick attachment to the Lower Lens Assembly or Tuning Extensions. Includes Studio Upper Assembly and hardware as shown.