I recently bought an EOS 5D Mark II camera body from Calumet. The camera's files have a vertical line in the picture. It is in the middle and goes down around 1/3 of the frame. It is most noticeable on landscape pictures in the sky. I didn't notice it at first until I shot some landscapes. I now have gone back and looked at my files, it is present in all of them. I sent the camera to Canon's service center in Irvine California. After a week they returned it unrepaired saying "origin of problem not detected". I don't know if that means they acknowledge the problem and just couldn't fix it or couldn't find it. Anyway they should have replaced the camera if it can't be repaired. I called Canon's facility and told them that they didn't fix the problem. They apologized and told me to send them the camera again. I did and after two weeks I got the camera back. They stated "part replaced, camera meets factory specs, firmware updated, camera cleaned". The files still have the line in it and they actually gave me an older firmware version not an updated one. I don't know how a camera can have a line in the picture and meet factory specs. I did send them a print showing the line plus a CD with RAW files so I can't see how they couldn't see the problem. Now I have contacted Calumet to see if they can do something. I contacted Canon first because I thought that is what Calumet would have said in the first place. Calumet's response was to pass along my message to their Canon rep to see what he says. I am still waiting for a response. I would have thought that Calumet would have offered to replace the camera since it is flawed and Canon can't seem to fix it. I'm not sure what to do next. Calumet may come thru but I don't know. Has anyone else had a similar experience? I have not heard of lines in the picture before. I feel let down by Canon. Has anyone else had problems with their service department?