The good and the bad, two cheap adapters 4/3 lens on M4/3: Micro Four Thirds Talk Forum: Digital Photography Review
Adapters: Micro 4/3
Micro Four Thirds 4/3 M43 lens to Sony E mount NEX adapter A6600 A7 III A7R IV | eBay
Minolta MD SLR Lens to MFT (Micro-4/3, M4/3) Mount Camera Body Shift Adapter – Fotodiox, Inc. USA
Used Metabones C-Mount Lens to Micro 4/3 Adapter III, Chrome MB_C-M43-CH3
K&F M11121 Nikon F Lenses to M43 MFT Lens Mount Adapter
Olympus OM 4/3 SLR Lens to Micro Four Thirds (MFT, M4/3) Mount Mirrorless Camera Body Adapter – Fotodiox, Inc. USA
M39 LTM LSM Leica Screw Mount to Micro 4/3 M4/3 M43 Lens Mount Adapter M39- M43 | eBay
FOTGA M42 Mount Lens to Micro 4/3 M4/3 Adapter Ring for Olympus Panasonic G1 G7 GH1 GF1 GF7 EP 1 E PM2 E PL7|adapter ring|fotga m424/3 m4/3 - AliExpress
Leica M to Micro 4/3 Mount Adapter · Lomography Shop
FOTGA AF Auto Focus Lens Adapter for Four Thirds M43 lens to Olympus Panasonic Micro 4/3 MMF3|lens adapter|auto focus lensmicro 4/3 - AliExpress
Contax RF KIEV RF to Micro 4/3 M43 with focusing part CRF MFT adapter | eBay
Amazon.com : C Mount Lens to Micro 4/3 M4/3 Adapter for Olympus Panasonic : Electronics
OLYMPUS OM4/3
Panasonic Lumix G 4/3 to m4/3 DSLR Mount Adapter - DMW-MA1 - Texas Media Systems
Metabones®
AF Auto Focus Adapter Four Thirds M43 lens to Olympus Panasonic Micro 4/3 MMF-1 799975145853 | eBay
Adapters: Micro 4/3
KIPON Shift Lens Mount Adapter for Olympus OM-Mount OM-M4/3
B4 2/3" to Micro 4/3 Adaptor | LensAdaptor
Olympus PEN F PENF Lens to Micro Four Thirds 4/3 M4/3 Adapter G10 GH4 GF2 VG10 | eBay
FotodioX Olympus 4/3 Pro Lens Adapter for Micro Four OM