Idex Optics & Photonics has enlisted Michael Marsh as general manager of the Melles Griot Optical Systems business. Marsh is the former general manager for various Eastman Kodak groups, including Inkjet Printing Solutions and Digital Capture. He was also the marketing, antitrust and litigation counsel. In this new role, he will oversee the Optical Systems offices in Rochester, Tamagawa, Japan, and Carlsbad, Calif. For more information, visit www.idex-op.com.