My lovely contax distagon 35mm encountered a little problem recently.
The front end of the lens barrel (in red) is moving a bit, up and down.
http://farm9.staticflickr.com/8365/8456793207_327589592f.jpg
It is only the barrel that moves so it doesn't affect photo quality and focusing.
I searched the web about adjusting infinity focus of the lens because it has a bit of focusing issue on my 5Dmk2.
and found the screws under the focusing ring wrap.
There were screws placed around the ring for adjusting the infinity focus but another 2 vertical ones (which I do not have a clue what do they do) and it seems it has been loosened before, little marks are seen in the picture.
http://farm9.staticflickr.com/8091/8456793233_6f3db92acb.jpg
Anybody know how to fix this situation or encountered this problem before?
Thanks in advance.:(
