The video links below show the manufacturing process of Canon photographic lenses along with an OIS mechanism demo and a few other related links. Some of the video pages display other side results for Leica lenses. The polishing process and precision calibration really makes you appreciate why these things are so damn expensive.

Main Search Results for Canon Lens Production
http://www.youtube.com/results?searc…roduction&sm=3

Canon Lens Production 1 (6:29)
http://youtu.be/MKNFW0YwDYw

Canon Lens Production 2 (2:38)
http://youtu.be/qzpt49qq6v4

Canon Lens Production 3 – Lens Barrel & Element Assembly (4:52)
http://youtu.be/6bQ3-DWh-rA

Lens Production – Discovery Channel (9:20)
http://youtu.be/X7_wL0ZZi6k

OIS (Optical Image Stabilization) Mechanism Demo
http://youtu.be/C60ehMe3wQ8

Lens Making Process – starts at :25 – also near the end shows lens coloring process
http://youtu.be/gJuScKSgvGM