An improved endoscopic device for obtaining 3-dimensional human vision simulated imaging with real dynamic convergence in therapeutic, diagnostic, and other applications. Imaging probes are mounted on a tubular shaft and a simple/sleek slider moves back-and-forth on the shaft, with slider movement optionally modified and redirected to affect imaging probe convergence/divergence. Imaging probe convergence/divergence can be optionally manual for visual target selection, and the probe arms upon which the imaging probes are mounted may also be moved through a combined 180 degree movement range using a manual control. The first and second movement transmitting means respectively adapted to cause slider-initiated convergence, or manual convergence, of the imaging probes each share at least one integrated movement element with the control means adapted for engaging and disengaging the first and second movement transmitting means. The endoscope can be fitted with different diagnostic and therapeutic systems, and can be adapted to work with robotic systems.