I just disassembled (and didn't bother putting back together) a Sony 16-50mm f/3.5-5.6, the build quality here seems to be better. That was a lot of plastic and parts didn't really "click" in place so much as "mashed in there." I've had to replace this lens twice already (and it's only a very, very part-time camera for me); I am significantly less careful with my Nikkor equipment and never had any issues there.
