This is a new model of the K&F CONCEPT M42 mount to Sony E-mount adapter. The difference from the previous model is that the inner surface has a matte finish, which prevents a decrease in contrast due to light reflection within the adapter. Old lenses already tend to have weak contrast, often resulting in photos that appear dull, so this is recommended for those who want to improve this with a mount adapter. I attached it once but didn't take any photos, and then removed it for storage, so it's almost new and unused. Comments are welcome. Please refrain from unreasonable price reductions. 【Notes】If this is your first time using an adapter ring, please be aware that if the "Release without lens" option in the body menu is ON, the lens will not be recognized and the shutter will not work. #Konica #KonicaARmount #MountAdapter #SONY #Emount #LensAdapter #OldLens #Adapter #Lens #Portrait #Landscape #Photography #Camera #CameraAccessories #MountConversion #LensAccessories #Unused #kfconcept #mount #lens #adapter #konica #ar #armount #emount #lensadapter #mountadapter