Originally posted by bdery I wouldn't worry about this ["zoom feel" stiffness]. The weather sealing of the lens/camera combo, plus some internal friction in the lens, mean it is indeed somewhat stiff, but it works just fine nonetheless.
Understood, and I've pretty much gotten used to it (or at least gotten over fretting about it) by now. [It is indeed helpful to know that my lens is not unusual in this regard.]
Originally posted by bdery Except if you have strong reasons to suspect a problem, I would not test for this [decentering]. No lens is perfect and you WILL find problems if you look for them, but that doesn't mean the lens is bad. Just that nothing is perfect.
I have not done extensive shooting with the lens just yet, but I cannot see any evidence of any noticeable decentering, so I am satisfied at this point.