Hello guys. Recently I bought a Contax G1 from a friend for a very very low price, becaouse of a strange situation. The camera body and lens work very well, but when camera is turned off, sometimes it makes some noise. After observe what is happening, I notice that the mecanics of the comunication between the body and lens work even with the body off. I'm trying to take off the bateries when i'm not using.
Someone know about this?

thanks