HOYA is the worlds largest optical glass manufacturer and holds 50% of the share throughout the world on all production of optical glass. Within this field of optical glasses, HOYA is exceptionally featured, without comparison to any other competitors. It supplies its glass to most of the renown optical lens manufacturers in Japan and around the world and holds the number one share of camera filters world-wide. Kenko Tokina is the world-wide export agent for HOYA filters.