Originally posted by mpreston I have two 01 lenses. I pretty sure they both are plastic. I took a compass point and it seemed to make a indention.
The first one I bought back in the spring of 2012 with a serial number 3070607 the second one is 3082350.
My 01 has a serial # of 3025xxx FWIW. The Q was scheduled for production of about 24K units.month, and for at least the first few months, the 01 was the only lens bundled as a kit, so I'm guessing it's from one of the first production runs. They could have changed the main barrel body when they originally made the decision to downgrade the body to the Q10 as a plastic barrel would be more practical for colors, and the superior build quality of the Q's metal body was constantly being undercut by the grumbling about the price. except for the resistance to dimpling by sharp objects, I'm really hard pressed to feel any difference between the base barrel for the 01 and 02, or 06.
Scott