User manual Wooden Camera MFT to PL Adapter (GH3/GH4) (English - 1 pages)
The 5-Minute Quick-Setup Guide for the Panasonic GH4
Amazon.com : Viltrox NF-M43X Manual Focus 0.71x Reducer Speed Booster Lens Mount Adapter w/Aperture Control for Nikon G D Lens to M4/3 Mirrorless Camera GH5 GH4 GF9 GX85 GX8 E-M5 E-M10 E-PL3