Versatile Compatibility: This adapter is compatible with a wide range of EF/EF-S lenses, expanding your creative possibilities with the DJI Ronin 4D camera. | Support AMF/MF/AF Focus Mode: Based on automatic focus, it also brings the precision and flexibility of manual focus. When the focus moves, the focus wheel will also rotate synchronously. | USB Type-C Firmware Upgrade: The adapter has a built-in firmware upgrade interface, which can be upgraded to be compatible with new models and new lenses on the market, making the adapter more widely applicable. | Inner Wall Thread Extinction Design: The thread extinction design can reduce the stray light reflection from the inner wall of the adapter ring, thereby reducing the reduction in image contrast caused by glare. | Increment & Decrement Key Design: "Increment key" and "Decrement key" can be used to fine-tune the lens calibration. After DJI Ronin 4D automatically calibrates the lens, if it is not clear, you can use the "Increment key" and "Decrement key" to further calibrate the lens. | Strong & Durable Structure: The EF-DL is made of aluminum alloy and stainless steel, which is lightweight, high-strength and corrosion-resistant. It is strong and durable without damaging the camera or lens mount.