- This electronic lens adapter lets you use Four Thirds 4/3 lenses on Olympus Pen, OM-D, and Panasonic Lumix Micro Four Thirds cameras. It includes electronic pins to enable autofocus, transmits Exif data, and supports manual aperture control, while allowing focus to infinity. Compatible with Olympus MMF-1, MMF-2, and MMF-3 adapters and serves as a replacement for the Panasonic DMW-MA1. - Key features: AF function supported for compatible 4/3 lenses, Exif transmission, manual aperture control, and infinity focus. Gold plated contacts ensure reliable connection between the 4/3 lens and the M4/3 body, helping autofocus work and enabling older lenses to be used effectively. - Construction and design: Aluminum alloy bayonet mount with a plastic body. Includes a 1/4 standard tripod thread on the bottom for easy mounting on tripods and supports. - Compatibility and performance: Reuses legacy 4/3 lenses on modern Micro Four Thirds cameras without sacrificing autofocus where supported. Maintains lens control through the adapter for a practical and versatile shooting setup. - Use scenarios: 1) Travel or landscape photography: mount 4/3 lenses on an OM-D or PEN body to broaden your focal options with autofocus. 2) Creative reuse: pair older Olympus or Panasonic 4/3 lenses with a modern M4/3 body to extend your lens collection without new purchases. 3) Studio or field work: use the bottom tripod thread for stable setups while maintaining AF and exposure control through the camera and lens combination.