Quality is the Essence of Vanguard In 1998, Vanguard’s manufacturing facility earned ISO 9001 certification and was among the first accessory manufacturers to do so. Vanguard is audited annually to verify conformance. Vanguard products are tested repeatedly under extreme conditions to ensure that all products perform to standard. For example, each binocular and spotting scope is submerged in 36 inches of water for 30 minutes and then reviewed to ensure it is 100% waterproof and fogproof. Every tripod undergoes inspection that includes weight capacity checks and functional performance testing of each working part. Tripods that score a 100% performance rating make it to the packaging department.