● This is a mount adapter for attaching Contax/Yashica mount lenses to Micro Four Thirds mount camera bodies. I have used it with a mirrorless digital SLR camera via the mount adapter. The number of times used is only a few, and the frequency of use is low, so it is in a clean condition. ● Product Overview Manufacturer: KIPON Product Name: Mount Adapter Model Number: C/Y-m4/3 Compatible Lenses: Contax/Yashica mount lenses Compatible Cameras: Olympus OM-D, PEN series, Panasonic Lumix G series, Blackmagic Cinema Camera, and other Micro Four Thirds mount camera bodies ・Notes: Please turn "Release without lens" to "On" in the camera's custom menu when using. ・Please use A (Aperture Priority) mode or M (Manual) mode for shooting mode settings. ・Focus is MF (Manual Focus). ● The product is a used item from a private seller, so please purchase only if you understand that it is non-refundable and non-returnable.