Feature: 1. Easy EF Lens Mounting: This electronic lens adapter allows EF mount lenses to be seamlessly attached to for NEX mount cameras, providing convenience and versatility in photography setups. The detachable base with a 1/4 inch hole is tripod mountable for added stability. 2. Enhanced Electronic Control: With built in electronic contacts and data chip, this adapter ring enables quick adjustments of aperture, shutter speed, ISO, and depth of field directly on the camera body, delivering a seamless user experience similar to using native lenses. 3. EXIF Information Support: This lens mount adapter enables the transmission of EXIF information, preserving the original optical effects of the lens and facilitating seamless communicating between the camera and the lens for efficient shooting data adjustment. 4. USB Firmware Upgrade: Featuring a built in USB firmware upgrade interface, this lens adapter can be updated to be compatible with new camera models and lenses, expanding its range of compatibility for enhanced performance. 5. Glare Reducing Design: The internal wall of the adapter is designed with thread dimming to effectively eliminate excess light entering the camera body, preventing glare and ensuring a clear and comfortable viewing experience. Specification: Item Type: Camera Lens Adapter Material: Aluminum alloy Compatible Lens: for EF mount lenses Compatible Camera: for NEX mount camera Features: Supports auto focus and auto aperture, supports full frame cameras with no vignetting. Package List: 1 x Lens Adapter 2 x Lens Adapter Caps 1 x User Manual