The worldwide explosion in HDTV production and the emerging interest in 1080/60P/50P studio origination spurred the desire for increasingly higher performing HD studio lenses. The design of this third-generation HD studio lens sought the highest possible image performance in the 2/3-inch image format. A decade of progressive advances in optical design techniques, optical materials, optical coatings, and multiple manufacturing processes coalesced to produce a truly outstanding HD studio lens.