Avast Marine Works
Porthole Mark II Studio Upper Assembly
Porthole Mark II Studio Upper Assembly
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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.
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$5 Shipping
Flat Rate Shipping for all domestic orders. No minimum purchase requirements.
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Hassle-Free Exchanges
Sometimes things don't work out. We make it easy to return or exchange items should you need to do so.