Hi, I've been offered a faulty EOS 400D for £54, $63 which has the following fault: The AF mirror will not lock in place causing un even exposure. I asked a couple of shops about a repair and they said £200 $250. I've a friend who can take things apart and fix them. Is this likely to be a broken part or will it just require a fiddly or lengthy reassembly? I provisionally bought it so should I be trying to get out of the. Purchase? Any help appreciated.



