A while back I posted that cool video of how a Leica lens is hand-assembled. At the time I mentioned that I've never owned nor even used a Leica lens but that I respected the craftsmanship and care with which they are put together.
It occurred to me back then that I had, indeed, seen videos of Canon lenses being assembled (specifically their “L” series; I am not sure if the non-L lenses are hand-assembled or not) but I didn't have the presence of mind to go find them.
Because I'm still mostly a Canon devotee I thought it wise to catch up with that thought and post these behind-the-scenes videos of a Canon “L” lens being assembled, yes, by hand. Truly it is a marvel of engineering and of manual dexterity at some points. Hopefully if you, too, are a Canon shooter, these videos will give you even more respect for the product you likely hold in such high regard.
This is a three-part series and takes you all the way from “how do we make sand into a lens” to “this is how we put the barrel together.”