Description: Commlite FT-MFT is specially designed for M4/3 series DSLR' S adapter ring which applies to 4/3 lens. FT-MFT can easily achieve AF function with the inner electronic copper pins. And while using the AF camera lens which is compatible with high speed imaging the camera can have smooth automatic focusing ability to photograph with live view. - Features: 1. Auto-focus function; 2. Aperture exactly being adjusted via the mount adapter; 3. High-quality Aluminum alloy metal mountdurable in use; 4. Copper metal pins brings the great conductivity of signal transmitting; 5. Comes with front & rear caps for protecting; 6. Equipped with special lock more convenient and secure.