An endoscopic system comprises an image capturing device. The image capturing device captures an image of an examinee and generates a captured image signal with respect to the examinee. A control device is connected to the endoscope. A first controller is disposed in the endoscope and having a first sender/receiver communicating with the control device during a predetermined period when the endoscope is connected to the control device so as to send a plurality of parameters for driving the image capturing device to the control device. A second controller is disposed in the control device and having a second sender/receiver receiving the parameters sent from the first controller during the predetermined period when the endoscope is connected to the control device. An output value controller is disposed in the control device and setting predetermined output values relative to the control device required to drive the image capturing device.
