Viltrox Nikon F-mount Lens to Micro Four Thirds M4/3 Panasonic Olympus Cameras - NF-M1 EOFY SALE ON NOW
- Built-in pure copper with gold-plated electroniccontacts
- The bayonet is made of pure copper .
- The adjustmentring is aluminum and it can adjust to
- The surface iselectroplated which is sturdy durable .
- Firmware upgrade via USB port