Here is a neat video. Host Rudy Winston, Canon technical advisor of renowned fame, explains…
The Science and Technology behind Canon’s “L” Lenses
The science behind the glass. #Canon's EF L-series lenses are distinctly different. http://t.co/K4jVgeMM9a Here's why pic.twitter.com/bElomqtxIp
— Canon Pro Network (@CanonProNetwork) February 13, 2015
The Canon Professional Network posted an article about all the technology and science that’s behind a Canon “L” lens.
In several L-series lenses, both UD glass and fluorite lens elements have been combined to produce optimum results. With the continued increase in resolution of digital cameras, demands on lenses are increasing. It is likely, therefore, that UD and fluorite elements will be incorporated into a greater number of lenses, from wide-angle to super-telephoto.