Optron is a division of the Canon Camera company. They have been producing [growing] flourite crystals for over 25 years. Takahashi purchases their flourite lenses from Optron. A few months ago a member of the TakUnCensored Group published a link to Optron which described its history and information about flourite lenses.
Canon uses their own [Optron] flourite lenses. They were the first to multi-coat flourite in the early 90's.
Canon uses their own [Optron] flourite lenses. They were the first to multi-coat flourite in the early 90's.
