Practical Manual Focusing Problem of the DA 18-135 DC Lens

See what this new user of the 18-135 DC lens reports:-http://www.dchome.net/viewthread.php?tid=981773&extra=page%3D1(Traditional Chinese, Babelfish English Translation Here)The problem is that the MF ring of the DC lens lacks a focus scale but in addition, the worst thing is that it is freely rotating in cyclic. The user could by no means do MF (in this case the user wanted to shoot night scenes