EF/EF‑S to GFX Adapter Ring — Fast AF & Adjustable Aperture, Anti‑Reflection, Firmware 2.03 (USB Upgradable)

Use this adapter ring to mount EF and EF‑S lenses on GFX cameras while retaining automatic focusing and adjustable aperture control. Built from aluminum alloy and copper, the adapter includes a gold plated copper electronic contact point to ensure dependable information transmission and accurate aperture operation. Firmware Version 2.03 with a USB upgrade interface lets you apply updates to improve compatibility and performance. The adapter’s interior features an anti-reflection treatment to minimize stray reflections, and an ergonomic release key enables quick, hassle-free lens changes. Designed for long-term use, the adapter has a metal body finished with an electroplated surface treatment for added durability and reliable performance.