Hi All,
https://www.youtube.com/watch?v=ovxtgj4SsiI
Making Canon 500mm f4 lens
Lacking English translations for the Vixen factory tour clip, this clip in the link above in English shows how Canon lens and coatings are made, which share similar processes and as a substitute to how the Vixen objective lens are made.
Now I understand better why good lens in fracs and cameras costs good $$$!
Enjoy!
Kind regards,
Bill