We have a history of excelling when it comes to making achromats. Consisting of two or more elements, (usually crown and flint glass) bonded together to correct optical aberrations. Achromats require a combination of precision machines and highly-skilled technicians. At LaCroix Optical Co., we utilize years of experience to produce the highest quality achromats available. * 3 mm — 130 mm * In-House Coatings available * Surface accuracies up to 1/20th wave * Optical axis to within 1 arc second