EF-FX Lens Adapter Auto-Focus Lens Speedbooster Converter Ring Compatible for EF/EF-S Mount,Sigma Lens Mount and Fuji X Mount Mirrorless Camera Lens

7artisans EF-FX Lens Adapter Auto Focus: EF-FX adapter adopts metal electronic contacts to support the information sharing between the lens and camera, bringing fast speed and smooth focusing experience. With the function of eye controlled focusing, supporting support real-time tracking of the subject to improve the overall stability of the shot. EXIF Signal Transmission: EF-FX adapter can transmit the EXIF signals to the mounted camera and record the information and details of the picture. You can check the current information on the camera or image software (Like aperture, shutter speed, exposure parameters, etc). Adjustable diaphragm and inner wall extinction: EF-FX transfer ring has built-in electronic contacts and data chips, which can quickly and effectively adjust the diaphragm on the body, and can conduct inner wall extinction processing. The inner wall of the connecting ring is threaded extinction, without reflection and light leakage.