M39 - Leica M (50-75) | This lens adapter allows a M39-mount lens to be used with a Leica M-mount (50-75) camera body.Manual Focus | There is no electrical contact between your lens and camera body whilst using this adapter, so automatic diaphragm and auto-focusing will not function. Allows manual focus to infinity.Quality | This adapter is made from hardened aluminum ensuring it will not distort and making it highly durable. A product for life.Gobe | Gobe was founded on the principles of environmental sustainability. Using minimal recyclable packaging and with funds from every product sold forwarded to the planting of 5 trees in areas of severe deforestation, the core of the Gobe story is one of passion and concern, artistry and inspiration, creativity and custodianship.What you getGobe lens adapter for M39-mount lens to Leica M-mount (50-75) camera bodyGobe cotton carry pouch5 native trees planted in an area devastated by deforestation (Madagascar, Haiti or Nepal. You can request where you want your trees planted, just get in contact with Gobe)Please note | If your camera displays "lens is not properly installed" please modify your cameras shutter settings. Refer to your cameras manual for specific instructions.