The image sensor according to the present invention comprises a shift register which includes a plurality of stages of unit registers Res, a plurality of transistors Tr3, and a plurality of transistors Tr8; each transistor Tr3 corresponds to one of the unit registers Res, and resets an input signal In of a back unit register when the corresponding unit register Res to the Tr3 outputs a high level signal, the back unit register being arranged in back of the corresponding unit register Res in shifting direction; and each transistor Tr8 corresponds to one of the unit registers, and resets an input signal of the front unit register when the corresponding unit register to the Tr8 outputs a high level signal, the front unit register being arranged in front of the corresponding unit register in shifting direction.
The present invention provides a solid state image sensor and a camera using such a solid state image sensor, in which all of stage registers of the shift register can be reset efficiently without increasing the number of pads and/or sensor pins. The solid state image sensor comprises a plurality of photoelectric conversion elements 31 arranged in a two-dimensional array, a vertical shift register 503 disposed in a column direction and a horizontal shift register 504 disposed in a row direction and is characterized in that a timing for controlling resetting means for a first stage register of the shift register differs from a timing for controlling a second stage register and subsequent stage registers. Further, as a concrete example, the second stage register and subsequent stage registers are rest by a pulse for driving the shift register and the first stage register is reset by a pulse in which a high level is reached only upon power ON.
