MC4K series is a collection of macro lenses fitting both 4K linescan cameras and matrix detector cameras over 4/3″. These lenses are specifically designed to naturally work as macros, as opposed to infinite conjugate lenses with added spacers: a common alternative but unable to deliver the same optical performances. MC4K lenses feature a fixed aperture, selected to ensure optimal field depth, image resolution and brightness for each magnification range, while meeting the typical needs of machine vision applications. The absence of an iris adjustment mechanism leads to a simpler and streamlined build, granting extra durability and precision. Machine integration is made easy thanks to the precise focusing mechanism and the possibility to choose from an F or M42x1 mount (-N). MC4K series additionally features a front M30.5x0.5 thread for insertion of an optional filter as well as easy phase adjustment.