{"product_id":"porthole-studio","title":"Porthole Studio - Avast Marine","description":"\u003cp\u003e\u003cstrong\u003eThe Porthole Studio Bundle is made for professional reef photography and cinematography. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Porthole Studio Mark II is a modular reef photography system with a precisely engineered optical interface designed for DSLR and mirrorless photography. Rebuilt from the ground up on our new MIIM (Mark II Modular) architecture, the Porthole Studio is designed for the uncompromising reef photographer who demands optical integrity and mechanical stability. This is no longer merely a window into your reef; it has become an extension of your professional glass. \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eKey Features \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cspan\u003e\u003cstrong\u003e100mm MIIM Architecture\u003c\/strong\u003e:\u003c\/span\u003e\u003cspan\u003e The Porthole Studio is anchored by our proprietary 100mm heavy-duty threading. This cinema-inspired architecture enables rapid, tool-free configuration, allowing you to swap between extensions and prime lens adapters in seconds.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cspan\u003e\u003cstrong\u003eOptimized Light Path\u003c\/strong\u003e:\u003c\/span\u003e\u003cspan\u003e We have optimized the internal geometry to a diameter of 90mm (3.5\"). This precise calibration ensures compatibility with contemporary professional lens profiles, greatly minimizing internal bounce and stray light, which results in improved contrast and more accurate color saturation.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cspan\u003e\u003cstrong\u003eReinforced Studio Mount\u003c\/strong\u003e:\u003c\/span\u003e\u003cspan\u003e The Mark II Upper Assembly features soft-nylon axial thumbscrews. Engineered with embedded 6\/6 nylon hex nuts, this mount provides a secure, non-slip grip that protects your lens barrel while maintaining the optical path perfectly centered.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003cstrong\u003eRapid Evacuation Design\u003c\/strong\u003e:\u003c\/span\u003e\u003cspan\u003e Internal air chambering enables near-instant air evacuation upon submersion, ensuring that no trapped bubbles ruin your shot.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cspan\u003e\u003cstrong\u003eIonic Air-Cleaned Optics\u003c\/strong\u003e:\u003c\/span\u003e\u003cspan\u003e Every Porthole Studio unit undergoes a proprietary ionic-exchange cleaning process. We ensure all components are free of debris before they contact your water or glass, maintaining the pristine environment needed for high-resolution macro capture.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cspan\u003e\u003cstrong\u003eTactile Depth Reference\u003c\/strong\u003e:\u003c\/span\u003e\u003cspan\u003e Our signature silicone logo band is placed at the 4-inch mark. This creates a subtle, functional waterline guide, helping you keep a steady depth of field without ever losing sight of the viewfinder.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cspan\u003e\u003cstrong\u003e20% Weight Reduction\u003c\/strong\u003e:\u003c\/span\u003e\u003cspan\u003e Modern engineering incorporates lighter materials. By decreasing the total weight to just 9.5oz (270g), the Studio Mark II minimizes stress on your lens’s internal autofocus motors and your camera's mount, enabling longer, more comfortable shooting sessions.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cstrong\u003eThe Ultimate Diagnostic Tool\u003c\/strong\u003e: Apart from professional photography, the Porthole Studio Mark II is a vital tool for husbandry. Use your DSLR's superior clarity to track coral growth over time, spot early signs of pests, or examine high-resolution images of \"mystery\" hitchhikers that are invisible to the naked eye through surface ripples.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eThe Porthole Studio Bundle comes with Mark II Lower Lens Assembly, Upper Lens assembly and one universal dust cap.\u003c\/em\u003e\u003c\/p\u003e","brand":"Avast Marine Works","offers":[{"title":"Default Title","offer_id":51629209747754,"sku":"Porthole-Studio","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/0873\/7322\/files\/avast-marine-works-porthole-studio-avast-marine-1241402487.png?v=1780528030","url":"https:\/\/topshelfaquatics.com\/products\/porthole-studio","provider":"Top Shelf Aquatics ","version":"1.0","type":"link"}