Our conversions are performed using high quality optically engineered glass filters that undergo 6 or more steps of quality control and cleaning, including microscopic inspection and cleaning in an ISO Class 5 clean bench. Our camera conversion color filters are made from Schott glass, considered some of the best filter glass in the world, and our full spectrum filter is made from a fused quartz material for superior durability, transmission, and internal quality than glass. Infrared conversions is all that we do, each and every day for over 8 years. We are obsessed with quality and making our customers happy, with Kolari Vision you are getting the best infrared conversion in the world.