Canon celebrates 50th anniversary of lens employing synthetic fluorite
Canon Inc. and Canon Optron, Inc. today announce the 50th anniversary of the release of the FL-F300mm f/5.6 (released in May 1969), the world’s first lens for consumer interchangeable-lens cameras which employed synthetic fluorite. Alongside Canon’s interchangeable-lens range, synthetic fluorite is also used in a wide selection of Canon’s optical products, including broadcast lenses and astronomic