This is the only commercially available microscope guaranteeing transmission of more then 80% for all four YAG laser harmonics: 266, 355, 532, and 1064nm - without compromising the review channel fidelity. The MIC4 microscope is instrumental in laser repair of TFT arrays over the wavelength ranging from infrared (1064 nm) to deep ultraviolet (266 nm). This innovation facilitates efficient trimming of metals, silicon and ITO as well as open line repair, within a single piece of repair equipment. The MIC4 is fully compatible with the ATF4, ATF5, and LLC6 linear lens changer products which are all members of the WDI family of products supporting the FPD fabrication process.