Ok, my bad. I have bad eyes. But still, I wana know.
I have came across people who kept telling me that they couldn't find a copy of lens that they want even after visiting a number of shops. There were manufacturing defects.
It really scares me you know?
Normally if I buy lens, I just take a picture and download and look at it on the monitor 100% crop.
But they are telling me things like bubbles, grinding, rather finishing not good, elements alignment not good in zoom lens. The best is, I couldn't see it at all!
I really got this phobia that I'm not checking the lens correctly, or rather, I couldn't identify defects.
Izit really my problem?
How do you guys actually inspect your lens?
p/s: Yeah, I'm worrying too much. Haa! Bcoz the lens never fails me.