Additive manufacturing, also known as 3D printing, allows rapid fabrication of metal pieces with various compositions, shapes and sizes. The complete process takes place at high speeds and involves high thermal gradients. The core of the process is extremely bright, and thus also a major challenge for camera-based imaging systems of additive manufacturing processes. Cavitar’s CAVILUX laser illumination enables clear visualization of additive manufacturing processes as if they are cold by eliminating the process brightness. Our solutions can be applied principally in all arc and laser based additive manufacturing and metal 3D printing processes. High-speed infrared imaging solutions from Telops provides new insights for research on additive manufacturing. Fundamental research on heat transfers and monitoring of the printing process can benefit from high spatial, thermal and temporal resolutions.