A new version of the E3500 computer-controlled multiple-trap optical tweezer system with E4100 quadrant photodetector force measurement capability has been unveiled by Elliot Scientific Ltd. The system uses one fiber-coupled laser for trapping and another for the probe beam. It comprises an optical module containing the laser, beam-steering optics, a microscope interface, a control module with drive electronics, a computer, software, a laser blocking filter and a high-speed camera with Gigabit Ethernet. Suitable for multiple spot trapping and manipulation of micron-size particles, the system is designed to be attached to high-quality commercial instruments to upgrade them to photonic force microscopes. Applications include cell sorting, microrheology, colloid research and particle spectroscopy. The laser delivers a TEM00 beam with M2 of 1.05.