The Metrology tag organizes content about optical components and systems used for precision measurement of dimensions, surfaces, and optical properties. Articles may discuss telecentric lenses, interferometric setups, and specialized imaging optics that help achieve high accuracy and repeatability in inspection and calibration tasks. Topics include control of distortion, depth of field, and alignment, as well as the role of stable mechanics and environmental considerations in maintaining measurement integrity. The tag can feature applications ranging from semiconductor and electronics inspection to mechanical part metrology and optical testing. For engineers developing or specifying measurement equipment, these resources highlight how tailored optics and assemblies influence system performance, throughput, and ease of calibration. They also showcase Avantier’s experience in collaborating on metrology projects where optical design and manufacturing quality directly impact instrument capability.