lannes wrote in post #15219583
I think one of the spring loaded lens mount pins must be stuck and not connecting to the lens gold connectors on the 50mm, are they all the same height
looking in from the front, the three pins on the left are as a group higher than the main set of pins, maybe one of these is just not connecting properly
BINGO. At the time lannes's post, I checked and the three higher pins looked OK. HOwever, today, the camera started acting with the L lenses. I removed the lens to clean the pins and noticed that the third pin (of the highest) left to right is fully depressed and does not come up. At least I now found the problem. I am planning in walking to Canon service (about 5 miles from here) to see if they want to check my camera. My question now is: Has anyone had this problem? Is this a big deal? I appreciate your answers. This morning I used the 5DII camera with my EF 24-105L lenses taking some photos for christmas cards and the photos came really nice, I would not change the 5DII for anything else. Let me know if I should worry, or is this a minor thing?